I'll add a few more:
*A contract employee got caught sleeping on the job by my supervisor's boss. Needless to say, that guy isn't working here now.
*A few other guys who aren't here were upselling support plans with promises that we would do certain work. We found out later when we had to tell a customer "sorry this level doesn't allow for X to be done" and get yelled at by a customer wasn't fun. They aren't working here now.
*One guy brought in a 12 pack of beer to work in a paper bag. A co-worker went to get something off this guy's desk, and was shocked that the guy brought the beer inside the office. He's not working here due to other things.
*The beer guy also was notorious for bad documentation of his customer contacts, and often wrote things in his ticket documentation that made no sense or wasn't relevant to the customer call.
*One girl was overheard telling a customer "What do you want me to do, hold your hand?

". Keep in mind this is a tech support help line.
*Another guy told a customer that his 10 minutes were up, and he had to call back due to the time limits. We are asked to average about 10 minutes for a phone call and we aren't allowed to say that. In a course of a week, plenty of shorter calls balance out the longer ones to meet the goal.
*One person told a customer you will have to call back, its my break or lunch time now during the call.
*One guy was intentionally screwing up on stuff as he was really hating his job & the managers and made no bones about the fact to others by him. I remember him being escorted out the door still ranting and raving.
*A guy who was disabled that was given plenty of accomodation to do his job but still never met any of the goals & rarely sounded like he knew anything. The boss was afraid if they let the guy go he could play the disabled card & perhaps sue. It took about a year before enough evidence was shown that even with extra help, he's not meeting the goals, and others with his disability were able to get close to it with same types of help. I have no idea what he's doing for a living now as he's not working here.
(Lets say that those in the examples listed aren't working at my company at all, I have no idea if they got employed elsewhere LOL)