Time, On Time, No Time What Time

You know you are a parent when your teenager can't seem to respect time.  An on going battle is waging in my house.  I feel that if you are bringing the said child to an event of her choosing that the child should be waiting for you not the other way around.  I know once or twice is not too offensive but on a regular basis as part of the norm it is infuriating to me.  I feel that the child has no respect for me as the one doing the driving.  I schedule other things around her event.  I want to bring her to these events but the continual waiting is aggravating.  So now If I have to wait I either do not go or I leave without the teenager.  Enough said.