Towards the beginning of my career, my boss asked me to go with him to a [partially] NASA-sponsored hackathon. Being more junior, I wasn't really in a position

Towards the beginning of my career, my boss asked me to go with him to a [partially] NASA-sponsored hackathon. Being more junior, I wasn't really in a position to say no and not surrender my Saturday (or so I thought at the time). He didn't really do any programming at the Hackathon. I did some pointless space-themed web UI work. It didn't result in anything worth talking about. He used this event as a PR opportunity and went on the local radio to say we had done a project for NASA. I'm still embarrassed about that.