I did something dumb as hell last night and had klonopin with 2 Four Lokos. I blacked out. Usually I'm much more careful and haven't blacked out in quite a while, but I was in my room at least. I wasn't out with anyone. The psychiatrist is weaning all patients off klonopin. I only get 15 0.5 mg pills each month now.
So yeah, alcohol can potentiate klonopin, but at your own risk. Be careful.