To me it's not about what I have to do, but the fact that someone else is serving me for probably a pitiful wage. I'd rather they get paid well, but they don't

To me it's not about what I have to do, but the fact that someone else is serving me for probably a pitiful wage. I'd rather they get paid well, but they don't. So I tip. Even if they do a bad job because I know everyone has bad days.