Strip by: Garfunkel
Garfield: Isn't that Halley's Comet?
Chazz: Hey, look! Halley's Comet!
The author writes:
I saw the original Pooch Café strip on the TV Tropes page for "Look Behind You", noticed Garfield once used the same "Halley's Comet" distraction on Jon, and the rest followed from there.
Original Garfield: 1983-01-23.
Original Pooch Café: 2011-03-09.
Original strip: 1983-01-23.