I have recently started doing some paid childcare for a family friend - the deal was 2 evenings a week, I pick the girls up from school, watch them until whichever parents they were staying with that evening got back from work, feed them if necessary, supervise music practise and homework etc, until around 7:00.
I have yet to actually do as arranged - something always seems to come up that needs me to do an extra evening. So yesterday (Wed), I was asked to stay until 8:30/9:00 this evening (Thurs). Now it so happens that this evening I had plans, but nothing concrete. However, I have to stay as otherwise the girls would be left alone. I was also asked yesterday to do two extra evenings due to one of the girls not liking the choice of afterschool club on offer. I said no - I can't, I have plans and require more notice.
I know that no is a complete sentence, and have used it. However, AIBU to think I should be given more notice if I'm expected to double the amount of work I do? Or that I may not be able to just drop everything on days which are not the ones we agreed on when I started, as that way I could have planned around the extra work? For example, I was asked weeks ago to do every evening this week and was able to due to having notice for my plans. I feel horribly guilty 