Yes, of course you maintain a monogamous relationship with your floppy drive. But in a moment of uncharacteristic nonchalance, you may have shared a disk with someone you met. Fortunately, there is no social stigma associated with computer viruses. Remember, if it can happen to Gary and Don, it can happen to anyone. Get fixed.
Here at the bureau, we check our hard drive regularly and any newly received floppy drives using F-PROT software. The main attraction is the price: "If you are using this program on a privately-owned computer which is not used for commercial purposes, there is no charge." F-PROT, Mcafee, TBAV and AVPLite can all be downloaded from http://www.hevanet.com/kbrm/antivirx.html. This is not an endorsement, by any means, since there are many other anti-virus programs out there, like Virusafe, Immune, Norton, Microsoft, etc.