We used to have a receptionist who would install pretty much anything from anywhere. Animated dinosaur cursors? Bring 'em on. A game? Make it so. She'd click any link, any button, anywhere.
Periodically it was just easier to wipe her machine, re-install from an image, and then let her destroy it again.
"For example, the researchers found that users who are more comfortable taking risks are also more susceptible to virus infections"
That also applies to real life and STDs. In that case anyone sleeping with your receptionist should use a lot of latex protection.,