To catch a worm

I've always avoided using my flash drive on computers other than mine at the office or the two laptops that we have here at home. But when I presented our department's curricular proposals last Tuesday I had to plug my flash drive into somebody else's laptop at the meeting in order to show the presentation slides I had prepared. Aware that other computers in campus are notorious for harboring undetected viruses, I plugged my flash drive into this laptop which has an updated anti-virus software installed. And voila, a worm!--which luckily the anti-virus software was able to remove. While I can finally breath a sigh of relief, I have resolved that next time I have to share or use my files elsewhere I'll just email them to whoever is in-charge.