his tail looks as though it has been deliberatley injured unless a dog has bitten it but half of the tail has no fur and is totally raw. the cat looks very dirty and i dont want to risk trying to get him incase he scratches me. i have two cats and two children so would hate to bring anything into the house. what should i do? he wanders about or estate daily and even tries to get into some houses, mine included. his tail really does need attention, it looks incredibly painful and dirty.