Tom chews his nails with much gusto too. He really digs his teeth in hard and yanks away until he get the raggedy bit that is annoying him. You can really hear the crunching above the television. I think its just one of the little habits he has, and that Candy and Max have their own foibles too, in the same way that we do. Still and all, I'm waiting on him pulling too hard one day and then MEOOOOOOOOOOOOOOOOOOWWWWWWWWWWWWW - that was sore meowmie!