A temper check

Yes, I'm famously hot-tempered.  I've blogged about my inability to just keep my temper in check.
However, I must commend myself that I have been doing a much better job at not "losing it" when dealing with D.  She's not by any means a terrible child.  She never throws tantrums or really does anything to warrant my temper, I am just easily frustrated.
The other day, I was asking her to put her crayons away quickly because we had to leave (rule number 1 - never rush a child because you have not been conscientious of time...) and she was moving very, very slooowwwly.  So, I started to scream (because I was frustrated) and she in turn, shouted back, "Stop it!!  Stop yelling at me!"
Yes.  She did.  And I appreciated it because then I realized it was not her fault that she was moving so slow and that we were running late.  Chillaaax...
Obviously, my ideal would've been to just let the crayons stay there and not rush her at all but of course, I wasn't thinking with a clear mind at the time.  You see, I am not programmed that way.  Have you met my family??