Graffitti in 18.100A (Introduction to Mathematical Analysis) lecture:


Why did the chicken cross the road?
If he dotted it, it would be a scaler.


Prof. Mattuck upon seeing it: *mutters* Everything mathematical should be precise, even if it's just graffitti. Technically, the chicken needs two things to cross, not just the road. The same goes for dotting. And scalar is spelled with an a.