Go with a youth soccer or little league team some time. I guarantee no kid stops at one slice.

There's a similar concept, I don't know how widespread, called Mr Gatti's. The price is higher and the so is the quality. When I worked in TN, we would call the local shop with requests before we left the office for lunch and they would be waiting for us on the buffet. 2 of the guys I worked with would try and top each other in how much heat they could handle. One of the cooks hit on the idea of mixing the juice from the jalapeno can into the dough. Instant forehead sweat! I wouldn't touch it, but it was fun to watch the others.