In the Peanuts TV special Snoopy Come Home, Snoopy travels across the country to visit his sick former owner, a little girl. Along the way, Snoopy (along with his bird friend Woodstock) is continually thrown out of different buildings because of a "No dogs allowed" sign on the door. And accompanying each time Snoopy and Woodstock are tossed out of somewhere, a men's chorus (I think) says/chants: "No dogs allowed!", followed by a women's chorus (I think) saying/chanting: "Or birds...!"
With this in mind, I thought it might make for a fun Robot Chicken sketch to have the nerd character walk into a gym or a high school locker room and then get thrown out, with the same type of men's chorus and women's chorus saying/chanting (in the same manner as in Snoopy Come Home): "No dorks allowed!" "Or nerds...!"