I always felt, if you have a great sense of humour, you're bound to be intelligent. It needs cognitive and emotional intelligence to process and produce humour. Funny people are usually smart people and they're fun to be around. People who are mostly seen as being sarcastic and who love to ridicule others are most alienated people and they're usually depressed and aggressive.

Humor actually boosts your competence and confidence... trust me. Lectures delivered with humour are more enjoyable to learn than those delivered with seriousness and strictness.