#1 I visited my identical twin brother at his college where a lot of his floor didn't know he was a twin. That night he had some people over in his apartment and I hid in the bedroom. Note, he has a beard and I don't. While they were hanging out (and me hiding), he announces to the group that he's tired of his beard and is gonna shave it off, so he escapes to the bedroom where I'm hiding as if to shave. We switch clothes and I walk back out to the group with my bare face. Everyone takes note and, while it's generally an unusual thing to do at a party, nobody thinks much of it.