Jack Nicholson Clears the Table but Doesn't Get His Toast From Five Easy Pieces

This scene has always bothered me. Everybody thinks it is funny and it is. But it is also mean and juvenile behavior by the Nicholson character Bobby Dupea. Why give a hard working waitress a hard time? Only jerks throw fits in restaurants. If you don't like something speak to a manager or leave. Plus I find it hard to believe any diner or restuarant doesn't serve side orders of toast.
Waitresses and waiters have a hard enough job and then they have to put up with jerks and self important people giving them a hard time. I find it interesting that some people find it easy to act this way in a restaurant sometimes thinking they will get a free meal if they complain loud and long enough.
The 1970s were like the 1960s in that acting out like a sociopath became normal behavior to some people. See Alan Harrington's great book on this subject. It is titled: Psychopaths.
The other really good book on Psychopaths is "The Mask Of Sanity" by Hervey Cleckley.