College Dorms/Public Showers: Do you shower with flip-flops?

When I was about to move into a dorm for a first time, everyone I knew made a huge deal over having "shower shoes." I was told I absolutely HAD to have a pair of flip-flops in to the shower because the floor was gross and I might catch athlete's foot, etc, etc, etc. I interpreted this to mean: "Wear flip-flops into the bathroom, take them off, get in shower. Get out, put flip-flops back on, walk to room." However, a friend recently found out that I don't wear flip-flops WHILE I shower and was completely appalled, telling me that everyone in a dorm wears flip-flops in the shower. Is this true? To make this poll fair for those who haven't lived in a dorm, I listed some options for public bathrooms too--such as community center/pool bathrooms, water park bathrooms, etc. Anywhere there's a public shower.

P.S. Obviously, this largely applies to public/shared bathrooms. less