Guy calls in to cancel the trial of his antivirus so it doesn't renew. In typical fashion, I ask him what he's going to replace it with....
Me: You might want to put something on, otherwise you leave yourself at risk to be infected.
SC: That's okay, I don't need any antivirus.
Me: Well just so you know if you don't want to pay for one there are good freeware alternatives available.
SC: That's fine. I'm a computer science major. I don't get viruses.
Anyone can get a virus.
SC: Well I come from a computer background so I know what to watch out for.
Me: Okay but just so you know if you end up getting a virus we do charge for virus removal, either $200 instore or $300 inhome.
Me: The auto renewal function has been canceled, here's your case # have a good day.
I was tempted to tell him this: "That's like a motorcyclist saying 'I don't need a helmet because I don't plan on crashing'," but I figured he might complain about it so I bit my tongue. In my experience many computer science majors are clueless when it comes to basic stuff like this.