Community: 15 Insane Details You Definitely Missed
9. The Secret Background Sex Act
Here's a gag so insanely subtle that even the episode's director didn't know about it.
In season three's Law & Order spoof episode "Basic Lupine Urology," as the study group is walking around outside, in the top-right corner of the screen a man can be seen fixing his zipper moments after a woman wipes her mouth and walks past.
The implication of oral sex if obvious to anyone who happens to be randomly staring in that quadrant of the screen at the time, though on the episode's DVD commentary, director Rob Schrab insists the gag was pulled off without his knowledge, and he didn't realise until he saw GIFs of it online.