When people show up late

Okay, if there is one thing that really makes me mad it's when people show up late to something.

If I make plans with someone and we decide to meet there at 5, be there at 5, not 5:10, 5:30. If you have things to do before hand, get it done before. Don't use that as an excuse to of why you're late. You clearly knew before what time we were meeting so just be there on time. My way of going about this situation is I always show up a bit early, even if i'm a bit earlier than planned i'm always there on time!  So if your ever gonna plan on meeting up with me somewhere, just be there on time and i'll be happy.