I am a sahm and for some reason this equates to free childcare for my niece and nephew.
Its usually most school holidays or whenever the kids have a inset day.
aibu to say no, they seem to think I do nothing all day I have a 2 year old and a 7 year old myself.
What irks me the most is the fact at family events they always bang on how I don't do anything yet when it suits they expect me to drop everything to watch their kids!