So that's a pun. [Luckily he was paying attention and absorbed most of that explanation, which he then goes over with his head. Splitting hairs, hares, double meanings... So there's the saying and then literally splitting a hare and- Hah! Okay, he gets it, that was good! He even smiles to himself once understanding finally dawns on him, but the smile doesn't last long after that.]

It's still pretty funny, I thought it was just now anyway. It's not like I've ruined it forever just because I didn't know half the things you were talking about in the first place! I'll get it next time.