Re: Has a customer ever apologised to you?
I had a customer many years ago, when I worked for an ISP as general support, who kept opening e-mails from her daughter-in-law with a nasty embedded in them. This particular nasty would associate all .exe files with itself causing the nasty to run instead of whatever the old dear had meant to run. Her A/V program was a .exe, which made the fix a bit trickier. I figured out to rename regedit.exe to regedit.com and removed the association.
The second time she brought the machine in (same problem - dunno if DIL had a grudge or didn't know how to clean her PC) she brought in a lemon poppy seed pound cake. The third time (at this point I kept the regedit.com on her machine and exported the empty .exe association so it was a simple click-to-fix) was homemade chocolate chip cookies. the fourth was some kind of cranberry bread.
My cow-orkers threatened to riot when I told her about the simple click-to-fix solution so she wouldn't have to keep bringing the thing in.