While the optimist and pessimist argued about the glass of… Commentary:Guess they were too busy debating to realize they were getting "de-hydrated" from the conversation! 😆💧🥤 Related Funny Posts 🤝 Optimist: The glass is ½ full. Pessimist: The glass is ½ empty. Excel: The glass is January 2nd. A pessimist is just an optimist playing hard to get. I’m not really a “glass half full” kind of person. I’m more of a “Where’d I put my glass?” kind of person. People who live in glass houses should install frosted glass around the toilet part. The incontinent optimist sees the bladder as half empty.