While interviewing people, I always asked at least one technical question, and when the candidate answered it correctly, I would say "that's incorrect" and I'd give them an incorrect answer (politely). I'd also mispronounce technical terms that are widely known in the industry. I always did this at least once.
The good candidates would just barely chuckle, or not give any reaction and move on. The bad candidates would fucking lose it and throw a hissy fit.
It was a remarkably good way of weeding out people with anger issues.