That is outrageous and totally not acceptable! ! How can these jerks be in someone's house and show such a level of disrespect? These idiots are overdue for lessons on how to behave in another's home, actually they need to learn respect and how to act period! Poor little Flutter, she didn't deserve such cruelty being laughed at and made to be so frightened. And teasing your other kitties like that!!! I hope each of them are severely punished for this!! Sending some reassuring huggies and kisses to each of your furbabies!