One comic has the refrigerator light burn out, and Garfield, thinking it was never bright enough anyway, replaces it with a HUGE Bulb. Soon, Jon is headed for the fridge looking for a midnight snack. The final panel has light shooting out of every window and the chimney and Jon yelling for Garfield.
Garfield watching a cheesy romantic movie that consists entirely of "John! Marsha!" for 4 panels streight. he changes the channel and Face Palms when he gets "George! Shirley!"
Two different successful attempts at randomness, both involving vines: one coming out of nowhere inside the house, and another being used to rescue Garfield from a ginormous bowl of oatmeal.
In one Sunday strip, Garfield gets a phone call telling him he can get a grand prize if he answers two questions: what is the sound a cat makes, and what is the sound a dog makes? Garfield answers the first one correctly, but the second one...he messes that one up deliberately.
An earlier comic has Garfield winning a new house by correctly answering "What sound does a Felis domesticus (house cat) make?" He does this by meowing into the phone, but then the announcer asks for his name and address. In the next panel, Garfield has fainted, and the announcer is asking, "And how do you spell your name, Mr. Aaaaaaaaaaaaaaaaaaaaaaarrrrrggghhh?"
When Garfield wakes up one morning and Jon decides to go jogging...Garfield falls right back to sleep.
A later strip has Jon waking Garfield up at five in the morning to go jogging... then promptly yawns and falls asleep next to him in his jogging clothes. "I knew that nonsense wouldn't last long."
A comic shows Garfield using the Puppy-Dog Eyes trick on Liz to get some cookies. But just then, Liz did it right back at him...making Garfield give his food to her and head over to Jon. His response to that? "She's good."
One comic gives us Garfield using an ironing board as a surf board in the shower stall, resulting in a very startled Jon as his cat shoots out of the stall on a huge wave shouting "COWABUNGA!" when he opens the door.
"Why can't you just bat a piece of string like other cats?!"