IS YOUR FRIEND'S CHILD HER EXCUSE FOR BEING LATE or A NO SHOW?

My Yoga Teacher did it AGAIN this morning. I got up with the alarm (instead of sleeping in), and I spent the gas money and drove 20 minutes to be on time for class. Then we were left waiting for 15 minutes (not the first time) and then another teacher came in to tell us that ours had an "emergency" with her three year old and would not be able to make it. Some sub came in and did a class he made up as he went along - stretch exercises focused on ab development - like who gives a crap? I was laying there on the mat furious.

DO YOU HAVE A FRIEND or COWORKER or BOSS WHO USES HER CHILD AS AN EXCUSE for why SHE IS UNPROFESSIONAL? Are you always being asked to UNDERSTAND and FORGIVE because (Damn it!) her kid is just sooooooo cute ? Are you supposed to assume that her parenting responsibilities should be her priority over professional commitments? Are you asked to baby sit at no charge because you got elected to be "AN AUNT?" (Or is this now part of your ever expanding job description for which you will not be paid more because child care - when you like a kid - really ISN'T WORK? Is the kid always especially rude and obnoxious when she has company - you - which is distracting? (In other words she (and her partner) ARE NOT GOOD PARENTS BECAUSE THEY ARE RAISING DEMANDING BRATS!?) ADMIT IT! The kids are the biggest excuse ever!