Never Heard of "Shopdropping"

But it's been going on since 1989.

This is the season of frenetic shopping, but for a devious few people it’s also the season of spirited shopdropping.

Otherwise known as reverse shoplifting, shopdropping involves surreptitiously putting things in stores, rather than illegally taking them out, and the motivations vary.

Anti-consumerist artists slip replica products packaged with political messages onto shelves while religious proselytizers insert pamphlets between the pages of gay-and-lesbian readings at book stores. . . .

At Powell’s Books in Portland, Ore., religious groups have been hitting the magazines in the science section with fliers featuring Christian cartoons, while their adversaries have been moving Bibles from the religion section to the fantasy/science-fiction section. . . .

Article here.