So you’re saying that your 30 minutes is more valuable than mine? And that your hatred of waiting on other people is more important than whatever you were supposed to do? I don’t care if you’re 30 minutes late once or twice and you tell me, but if you tell me “oh sorry I’m late, I saw that I could have left on time but I’d rather have you wait on me than be on time” then that’s an instant way to piss anyone off.