im a floor and tile contractor, and i have another contractor who basically , every chance he gets, talks so much crap about me and my work that he gets the people i work for to thinking im a bad installer and they dont continue to use me for work. this time he has gone as far as to have the customer actually tear down a shower (which hasnt happened yet) because he wants to prove the tile work i did is leaking. if it shows it isnt leaking, can i sue him for defamation in small claims?