Why isn't there any profound graffiti?

[999_Springs]

Seeing as representatives from Warwick and Oxford have already posted, here's some random stuff from around Cambridge. Not exactly profound.

" 1 2 3 4 5 6 7 8 9 10 11 ..." written in a sort of permanent marker on the pavement outside the maths building. It goes up to 110. Been there for a few weeks and the rain hasn't washed it off.
" x'' = (r'' - rθ'²)r^ + (2r'θ' + rθ'')θ^ " or something similar written on a wall next to a large turntable.
" pi=E/3 " near the boathouse.

I didn't expect us to be that geeky... :o

EDIT: Should have mentioned this one earlier - this happened at about the date of the original post: Wham car crash graffiti