I have a friend of mine who really likes to use hand sanitizer. This bothers me, a lot. I believe in old fashion soap and water. I don't like to touch sanitizer gel, even in so called emergencies. You could just say that I'm against using it all together. Here's an interesting link:
http://biology.about.com/od/microbiology/a/handsanitizers.htmIt also includes links to Purdue News and Northwestern Universities Study, which are useful.