You should have worn a sign on your chest and back when working in that particular place that said...

"Yeah? Screw you! What are you going to do about it? I'll stay here just as long as I bloody well want to, so there!"

....and then you could have observed if the hostile feelings you were receiving got any stronger. ;-) It wouldn't be the kind of evidence that would serve to necessarily convince anyone else, but it would still have been an interesting experiment, I think.