Me and dh took our foster children (aged 9 and 4) to Haven for a treat as they had never experienced a holiday before.
LO was having the time of her life and one evening we were sitting in the family club, watching a show. The people on the table in front of us moved and this other family jumped into the seats - situated right on the edge of the dance floor. They moved the chairs around to give their son (around 6) a good view of the stage and plonked their pushchair right in front of LO.
I politely asked her to move the pushchair as LO could not see past it. She said, "I am allowed to bring a pushchair in here. What's your problem?" I stated that I had no problem with bringing the pushchair into the venue but thought it rather rude that she plonked it right in front of LO. I also explained that LO is partially sighted.
She told me "to get a life". Her son, later, moved from his seat and I put LO in his seat, where she could see the stage. This woman said, "Hey that's my son's seat. He is sitting there". I said, "Is he invisible then?. But no problem. When he returns he can have my LO's seat. You know the one directly behind the pushchair"
Her OH then tried to remove my other child's seat to place in front of their table, for his son to sit on whenever he returned - but dh took it from him 
This woman then joined in a gameshow on the stage. Every one around us, who had seen what had happened all shouted for every one of the contestents except her.
She lost.
AIBU to think she is just a rude bitch and deserves whatever shit life is going to throw at her? Go on I can take it.