The first time Percival meets this Scamander character, his wallet has just been stolen by an overgrown mole (in his own *office*) and somehow has made its way to the cells, where the patrol has just brought in a guy going on and on about how he didn't try to rob a bank but is, in fact, an object of his niffler's (the hell is a sniffler) mating ritual.

It gets worse from there.

"Magizoologist, what kind of a criminal pseudonym is that"