Not my intention to brag about it, but I run an R&D company and have invented and patents on quite a lot of network technologies :)
The only time in my life where I had an infected devices was in the year 1993 - a boot sector virus on a floppy disk I got from someone.
Luckily my wife is a nerd, too, by sister is trained and has not yet fallen for any of the social engineering tricks before. So no, I do not have to deal with other people's infected boxes either.