I agree with what everyone said. I would watch out for cragislist ads in your area trying to move your cousins snakes and your rats...

I NEVER let anyone in to my house to see my collection. I also NEVER let anyone come to my house to pick up a purchase. I'll meet them somewhere. Some people don't want to put in the work it takes and just steal to get to they want.

Put up signs, install cameras and maybe even a security system.