... in the too much information department: medical information.
Look people. Medical info is private. Sometimes, for a good reason. You have the right to keep medical information private, so please, exercise that right. Especially when said medical condition is totally irrelevant to the discussion and, moreover, is an especially embarassing one.
Because, you know, there really is no pride in admitting that you went water-skiing, fell on your butt, which caused tearing in a very sensitive and unattractive body part. Please keep it for yourself. It's not because we're on the phone that people won't be laughing at you for quite a while.