I just want to clarify - the water boiler is NOT on...you can see the plug to the left of it. I would never do something like that to an animal. The boiler is sitting on top of one of the trays from my toaster oven and it wobbles a little bit - as the kitten tries to balance on top of the boiler, she causes it to shake back and forth.It's probably the kitten's extra weight pushing it down and trapping air (or moisture) underneath. The air or what have you starts to warm and expand. The vibration is caused by it escaping.
yup, exactly. i tested it with the others and they all do the same thing - it's really funnythis happens if they stand on anything that isnt completely stable. they are trying to stable themselves, and so their legs just kind of shake. My kittens do it when they stand on top of this box I have in with them. its soo funny