acornfed
I can believe it. A lot of the parents are successful in their own fields eg neurosurgeon and one ITU doctor. Probably have no real interest in celebrity but find it odd to think someone would want to be friends with them for status. Very different spheres. If one of them was a junior fashion intern or something that I could understand. But why be rude to non famous people who are just "normal folk"?!
Well, anybody can have an 'off' day where they're bothered with their own life trials and tribulations - whether you're a surgeon or a teacher or a secretary. The thing is, all of those roles are anonymous unless you have daily dealings with them. Celebrities aren't anonymous, are they?
Look at this thread. Look at all of the posters who've assured this and that about people in the public eye. These celebrities, adored or otherwise, can't go about their business without being observed, nudged at, commented about, asked for autographs, selfies, any number of other things. The people asking for them are only doing so because of celebrity/wanting something/someone to talk about.
I feel sorry for celebrities of today because a) it's not the good old days of MGM where people weren't so mawkish and attention-seeking and b) the celebrities were actually good at their job. Now there are so many, running the gamut between genuine skill and talent in their art... and those who just dive into any camera shot doing anything they will get paid for, with no discernible skill.
So, TLDR - people who get star-struck don't behave well and celebrities (genuine or otherwise) don't appreciate the grasping/being approached. Even the smiling ones may have been avidly noticed many times that day. Rude or just plain fed up?
It's a job that I would hate.