Sysadmin just stepped in and told me this story

This user gets a password and complains to him that it does not work. So numerous times they change the pass and still same thing. (Oh we have a fairly complex password structure. ) At last he steps in to sysadmin`s office with his manager. Sysadmin tries to logon with his password and uname, TADAAA.. And he tells to user to logon, he tries 8 (eight) times with username and password, and he locks himself

What now?…