I have a 2 children in my care..one is 31/2 and the other is 14 months. I have a signed contract stating 3-days 7-4:15 and 2-days 10-5:45. This week is all 10-5:45. I asked her to pick up the kids at 5 on Tuesday and Thursday because we had a planned work bbq and Thursday we have my sons meet the teacher on. she only accommodated me on Tuesday not Thursday...texting me saying she couldn't on Thursday quoting"normally it wouldn't be a problem but people suck..LOL" (text). She always pick the kids up at 4:30. Its just frustrating because I have things that I have to do and feel like I am being taken advantage of. they treat me like I am suppose to be at their beck'n'call...I know I should grow a backbone!! Advice???