water pistol will do it or a spray bottle; we use both with our cats and dogs, its non lethal and does the trick.
as for air rifles making comments like that is as productive as me saying that noisey kids play in my street near my car, they might scratch it so i'll take pot shots at them.
some of you are parents and i know the response i'd get if i shot one of your kids; well the response would be thesame from someone if you shot their cat.
why bother making the comment. its not big its not clever and you look like a retard for saying it.