Thats hilarious. You must belong to my gym (and I dont think I would do any pullthroughs there if that is the case).
Anyway, there is a big sign on the wall at my gym that has some rules.
One of them is no grunting or loud noises as it may be distracting.
(I think I have broken this one a few times on the last rep)
Another is no perfume or other scented body products of the sort because of people that have alergies and asthma.
I havent seen anyone there with chalk, and I doubt they would like it too well.