[Saimey]

Ask about his home insurance and then report him to his insurance carrier.
http://www.bankrate.com/finance/insurance/11-dogs-that-could-raise-your-insurance-costs.aspx

[who knows what evil?]

Ask about his home insurance and then report him to his insurance carrier.

Excellent point...many insurance companies will yank your homeowners' policy if they find out that you own a pit bull.