From the February issue of Jane magazine:

A certain national megastore chain is now putting security tags on all condom boxes due to an “increasing demand for condoms on the black market,” says its PR rep. (Don’t ask us who’s buying rubbers in an alley.) Supposedly, the tags are deactivated at checkout. Maybe we’re just paranoid, but it sounds like a secret Pavlovian plot to stop premarital sex. Two separate friends were recently forced to play show-and-tell with elderly security guards when their purchases set off alarms.