Regularly get the "forgot password" type tickets or chat. Even worse when the users account is suspended, and their contact email address is the same as the account being suspended.
One of the things we seem to get is the "webmaster transferred the account to me, I thought I changed it to "X" so can you give me the first 4 letters or numbers so I can guess the rest"
We get lots of requests from people who forget their passwords for their shopping carts, forums, guestbooks etc etc - stuff we don't have access to.