In LAX I was waiting to go through security and the passenger in front of me was just taking forever. I asked if he minded if I go ahead of him and he replied that he was in a hurry, he did mind and pushed his bins up to the xray. Then he took at least another minute to get through.

That's OK, Karma will get him!

I will also encourage others to move ahead of me if I need a few extra seconds. I don't really have a problem with this but I usually travel very light and pack to go thru the checkpoint quickly.

I'm also usually early enough that the wait is not big deal. My only issue is that I have trouble standing for more than about 20 or 30 minutes.