One of the issues with FAKs is things tend not only to be used (no problem) but tend to "walk". For a while, at one company, we did a quick check because we thought this might be the case - sure enough - You'd check the kit one day in the AM - full, fresh box of bandaids, the next day, the ENTIRE box would be gone - someone was taking them home.

We eventually caught one guy at it(BTW, he even used to steal rolls of toilet paper - it's how we caught him), but he wasn't the only one