I was doing contract work last year for a young solo founder, and he promised a feature to a big customer who only signed up because of this one feature. It was a feature he vibecoded and was able to demo in ways that made it look like it was working, when in reality it was a buggy POS. The customer was going to go live on the platform in a few weeks, and this kid expected me to work over my pre-planned holiday to actually get this (frankly rather complex) feature built properly. I told him good luck, ended the contract, and enjoyed my holiday. No time for that BS.