for one exam a student convinced me he needed to take it in the disabled student's center (to get extra time) since he was having trouble understanding my exam, and with the english. i agreed to this arrangement, giving him the benefit of the doubt... why would he lie? during his exam the director of the facility called me and told me that she had caught my student cheating, and confiscated his exam and notes. i visited her office; his notes were of course in english. at a meeting in my office he denied everything, claiming that the director of the center was lying.
it gets better: the assistant coach for the soccer team called me; "this student's a good guy and a great soccer player, and if he fails my class he's not eligible to play." before a string of four-letter words left my mouth, i managed to say "tell me the name of your boss and give me his phone number, NOW." i gave the athletic director a piece of my mind, but the assistant coach still works there, and i left...
i'm sure you have similar adventures dave. hopefully this good one may make up for a couple of the others...