5CD - Maniac with pat hand (Somewhat low content)

[LLCoolDave]

I think it's a pretty safe call postdraw with his behaviour, you're getting 1:5 odds he's bluffing or semibluffing with a worse two pair, which sounds like a reasonable chance against a maniac. Nothing wrong with 3-betting predraw either, you're favorite against a random hand, which isn't far from his playing range it seems.