Far future. Civilization has collapsed. A small band of likable people are fending off bad people.
One of the good people stumbles upon Sir Terry's home and discovers a magic sword allowing him to fend off the bad people, get the girl, live happily ever after.

I usually claim "ignorance" now.

There's great benefit in saying "Sorry, I don't do Windows" when relatives ask for tech support. 99% of their problems has to do with Windows and Windows malware.