I have a fond memory of taking an advanced (graduate) seminar class with taught by one of the oldest professors at my university -- and attended by another. The lecturer was describing something to do with manifolds and various obscure formulations of classical field theories and he mentions that he was at a lecture once where someone had related this theory to Bohmian mechanics -- the other professor cut him off

"It's wrong"

A student held up his hand and asked what Bohmian mechanics was. Before the lecturer could answer

"Don't worry, it's wrong"

It was difficult to contain myself.