PlotHoward turns to Penny for help to win back Bernadette, during which, an embarrassing secret of his comes out. Meanwhile, Sheldon and Raj go to war over sharing the same office.
- As Himself: Katee Sackhoff reappears as Howard's fantasy, and is joined by George Takei, much to Howard's confusion.
- Ash Face: Raj after his aroma candles ignite with Sheldon's hydrogen sulfide and ammonia gas.
- Bait-and-Switch: Penny opens the door after hearing Sheldon knocking on the door and saying "Penny"... only to reveal Howard having Sheldon's voice on his phone.
- Escalating War: Between Sheldon and Raj over the latter getting a desk. It starts with Raj getting a huge desk that takes up half the office to spite Sheldon. The resulting exchange of juvenile pranks culminate in an explosion in the office singing Raj's hair.
- Explosive Stupidity: Sheldon is mixing hydrogen sulfide with ammonia gas to try to get rid of Raj. Raj counters with aroma candles, but as Leonard points out, the chemicals Sheldon is mixing are highly flammable...
- Moment Killer: Penny attempts this during Howard and Bernadette's talk, as she keeps interrupting the conversation and bringing free food items to ruin any chance of them getting back together. The manager calls Penny out for offering complimentary nachos off screen, though she presumably makes Howard pay for them.
- Noodle Incident: How Howard and Bernadette broke up at first; she walked in on him doing the cyber-nasty under the bridge of souls with Glissinda the Troll in World of Warcraft.
- Unsettling Gender Reveal: Howard ends up learning that the troll he had some fun with was created by a guy from Facilities Management, Steve Patterson.