Sometime in the past year or so I came across a gif that had an encounter from one of those chat services. One side had a pair of young men shown from the waist up, seemingly naked, making suspiciously rhythmic movements with their arms and hands just below the screen. The other side showed one slightly older man from the waist up, making similarly suspicious movements just offscreen.

The pair of men raised their hands, to show they were drying dishes. And then the other man raised his hands, to show he was polishing a shoe. Cue everyone cracking up.