He sees a lot of them so he would know.

Depending on which spider universe this is in, this might be a felony!

Everybody gets one.

"Why isn't Spiderman's dick out? Is he some kind of coward? Some hero!" -John Jonah Jameson Jr, probably

with great power comes great responsibility

Man of the people that one, that's why they call him the friendly neighbourhood Spiderman

"Your Friendly Neighborhood Peeping-Tom-Spider-Man"

THE reaction image of all time

This was a real hit at the dinner table with my family!!