I had something about tripping over ice.
Well, it slipped my mind, so I'll just test some diamonds to see if they're ice.
Slipped My Mind
Explanation
Explain Bear
Listen up, buttercup. The "ice" the dude tripped on is different than the "ice" he's gonna test. One's frozen water, the other's slang for diamonds. Get it? Bet your smooth brain didn't, huh?