Drawing on walls = Art
Drawing willies on walls = Maybe art
Peeing on palls walls in front of everyone = Performance art
Yes, these are fairly common occurances where I come from.
Regarding disembodied male-specific anatomy (penises!!1), at least I have the sense to add some rocket flames coming out the back of them, or, if I'm in for an extended duration, an entire rest of a person. It's the least I can do.