The two-part episode revolves around the wedding of Jim and Pam at Niagara Falls. Not all goes smoothly when Jim accidentally reveals Pam's pregnancy to all the guests, including Pam's very old-fashioned grandmother (Peggy Stewart), and Andy injures his scrotum while dancing. Meanwhile, Michael and Dwight both try to hook up with women, with mixed results.
- Didn't See That Coming: The office, especially Dwight, react snottily when Pam politely asks them to make a few lifestyle changes regarding soap, perfume and pungent food in order to make her morning sickness a little easier to cope with, with Dwight making a point of gloatingly peeling and eating a hard-boiled egg right at his desk right next to her in a kind of smug power move. Unfortunately for them, Pam has decided that if they're not going to show some courtesy, neither will she — and she promptly vomits right into her trashcan, promptly causing a chain-reaction of vomiting throughout the entire office (though Creed, entirely unmoved, calmly chows down on some noodles while it's happening). Dwight is clearly left regretting his choices as a result.
- Dude, Not Funny!: Jim's brothers give their toast together, during which they deliver a series of sexist jokes at the expense of their own wives. Even Michael thinks they're tasteless.
- Epic Fail: Jim accidentally telling the entire congregation (including Pam's old-fashioned grandmother), that Pam is pregnant. Even Michael is surprised that it was Jim that screwed up and not himself.
- The Farmer and the Viper: When Dwight and Michael arrive at the hotel, they find out the reserved room only has one bed. Dwight takes it, then tells Michael that he booked the room in Michael's name. Dwight then asks Michael if he can stay in the room with him in return, to which Michael says no because he wants to bring a woman in. Dwight then reveals that he was lying when he said the room was booked in Michael's name as a test.
- Freudian Excuse: Angela implies she didn't have a grandmother growing up, and she is so conservative and uptight because she is trying to be her own grandmother.
- Friend to All Children: Dwight is a more cynical example. He's forced to sit with the kids at the wedding rehearsal and tells them the events of the previous two episodes, in which Jim is the bad guy. Keep in mind some of these kids are probably Jim's nephews or nieces.
- Hoist by His Own Petard: In the cold open, the office workers, especially Dwight, refuse to make concessions in their behavior due to Pam's morning sickness. When Dwight mocks her with a hard-boiled egg, Pam vomits at her desk rather than going to the bathroom, setting off a chain reaction of vomiting through the whole office.
- Underlined by how unfazed Pam is by throwing up: almost everyone else in the office is overcome by nausea but, being by now used to her morning sickness, she vomits almost casually, then daintily wipes her mouth and gives Dwight a pointed Warned you… look.
- It's All About Me: The office react petulantly and selfishly when Pam asks them to make some temporary lifestyle changes regarding strong soaps and perfumes or pungent foods in order to make her morning sickness a little easier to cope with, hypocritically accusing her of this trope in turn. Dwight in particular snottily points out that since neither he nor the others were involved in the decision for Pam to become or keep the pregnancy, he sees no reason why he or they should have to modify their behaviours or preferences to suit her convenience. Unfortunately for them, Pam gives them all a lesson in why they probably should when she decides that turnabout is fair play, and that they deserve none of her courtesy in turn; the first time Dwight gloatingly unpeels and eats a hard-boiled egg right in front of her, she unflinchingly vomits into her trashcan right there in the office — prompting a chain reaction of vomiting from her horrified coworkers in response. One assumes that after this humbling little episode, everyone agreed that Pam had a point after all.
- My God, What Have I Done?: Dwight looks both amazed and horrified after he inadvertently causes everyone except Creed and himself to vomit in the office.
- Oh, Crap!: Dwight's smugness towards Pam as he eats a hardboiled egg in front of her despite her morning sickness quickly dissolves into astonished horror when she responds by vomiting directly into her trashcan rather than hurrying to the ladies room, as he was clearly expecting her to do. And then he's left utterly poleaxed when this provokes a chain reaction of vomiting throughout the entire office.
- Open Mouth, Insert Foot: Jim repeatedly warns everyone not to let Pam's grandmother know that she is pregnant, then slips up during his toast and blurts it out.
- Michael then tries to help bail them out. Does it even need to be said what the key word here is?
- Shout-Out: Dwight is seen wearing the Three Wolf Moon
shirt. - Vomit Indiscretion Shot: During the cold open, Dwight triggers Pam's morning sickness and causes a chain reaction through the office, leading to everyone except Dwight and Creed heaving rather graphically in their trash cans. Erin, failing to reach her trash can, pukes all over the floor behind the reception desk and Angela tries in vain to cover her mouth to prevent puking.
