I live on campus at school so I don't trust having my mail sent here. Instead all of my mail is sent to my parent's house and my uncle sent a check as a birthday gift a few weeks ago apparently. My parents said nothing came, but I don't believe that. Could they actually cash my check, I mean they know my SSN and everything? I know if I was a minor they could, but I'm an adult. Is it possible for them to do that without my knowledge or consent?