They spank you if you don't finish your food. Basically, if you don't want to get spanked, make sure your eyes aren't bigger than your stomach. Their smallest burger, the "Single Bypass", is a 1/2lb patty, with cheese, tomato, onion, and chili sauce, with an option to add 5 slices of bacon. Even that's a relatively big burger for most people outside the USA.

But they go all the way up to an "Octuple Bypass", which is 8x everything I just listed. So if you're not ready to eat 4lbs of beef and 40 slices of bacon, along with a bunch of cheese, tomato, onion, and chili sauce, you're gonna want to avoid that one. The biggest one I managed was the Quadruple, and I didn't eat at all the next two days. I failed on a Quintuple, so I got spanked, and they do not hold back, that shit hurts.