Please don’t put words in my mouth. When did I ever say 50%? Someone else botched their math and got to that number, and I even took the time to explain why their math was wrong. I have only told others to “tip generously”, to always include a tip in their budget while dining out, and in your specific case to tip more than 15%. Even in the offhand example I gave that you think is so insane and stupid, it only comes out to a 33% tip. The people who do the lion’s share of the actual labor deserve the lion’s share of the profits, and there’s nothing insane or stupid about that.