I agree that the OP should not ignore her gut totally. BUT, sometimes people's "feelings" about things are just flat-out mistaken. I had a friend who became enraged with me one day and it turned out she had been thinking all these crazy things. For example, months earlier I had casually mentioned we kept losing the cat toys because our cat kept batting them under a hole in the cupboard. After her blow-up, my friend said she thought with that comment I was accusing her of stealing stuff from my house.

:

: So she had basically been going around for months believing that I thought she was a thief, despite the fact that I kept inviting her to our home and giving her things.

In this case it sounds like the daughter was not worried or upset about the bath, and the OP might be reading too much into it. I agree it's best that she figure out why she is so worried about the incident, but don't necessarily agree that anything bad happened. If I had a group of squiggly giggly 6 year olds in a big bathtub, I'd probably have to "move" them around a little too.