I came across this link on Slashdot about a teacher in America who had a very anti-OSS attitude. It would appear that students were swapping Linux distributions and the teacher took exception to this and actually emailed the main developer!

http://linux.slashdot.org/article.pl?sid=08/12/10/001236

There's a lot of misinformation about Open Source and free software - what are YOUR ways of explaining why and how it's available?