Bioshock 2 Easter Egg - Jermey Was Here!

First go to the Diounynas Park and go to the theater (stage). Turn to your left of the seats and there should be bathrooms. Go to the boys and look in the first stall. Stand next to it, jump, and you should see "Jermey was here!" in white markings. Jermey is one of the creators of Bioshock and must have decided to make his mark in Bioshock 2.