oh yes!! gotta love the ones on waiting lists at centre's. I had one boy who started in May last year. He was so hard to transition. I even considered terminating as he would only nap 1 hour for me. I worked so hard (he still wasn't sleeping for more than an hour in August) and they ended up giving notice for Sept. You guessed it they got into a centre. I passed over so many other's. I always stress to my families when they sign on now that I am looking for a long term family although I understand that things change. I want them to feel guilty about lying right to my face - HA HA. Pretty sure I have missed out on a few of these "for now" families since. Nothing you can do about it. Some people will use you as a stepping stone waiting for something better to come around.