It makes a great case for itself.
*rewatched in celebration of Criterion's unbelievable new blu-ray transfer
There's a scene around 25% of the way through this film where Barry asks one of his brothers-in-law for help after a violent outbreak. His brother in law responds, "Barry, I'm a dentist, what kind of help do you think I can give you?"
I've seen Punch Drunk Love probably upwards of twenty times, maybe 5 or 6 or 7 of those times with other people who had not seen it…