I agree. The Osco at Northwestern University has the condoms in a locked case for precisely this reason -- college students steal shit.

One of my favorite stories involves my boyfriend and me (in high school) going to buy condoms at the Osco as part of an experiment to see how the checker would react to two teenagers buying condoms.

The process ended with "have a nice time" where she meant to say "have a nice day". It was pretty funny.