Is it good that my statics and dynamics professor is probably Obsessive Compulsive?

Prof: No, Tau is not written like that

*writes it almost exactly the same*

Dude: But I wrote it so similar

Prof: Stop, we can continue this discussion after you finish the problem.

Dude: Um okay?

Prof: Wait, I’m sorry.... that’s not how you write theta either.

Like, on the one hand, good on him for correcting our style, but on the other hand, tau is tau.