Kelloggs apparently didn't do enough market research before launching "Coco Rocks" in the UK.
You wouldn't normally put crack cocaine and breakfast food in the same basket. But thanks to a mix-up at cereal giant Kellogg's, the two have become synonymous.
The marketing monkeys behind the innocuous little chocolatey Kelloggs' Coco Pops thought they were on safe ground when they launched Coco Rocks, the exciting new jungle-inspired spin-off of the cereal. Unfortunately for them, they don't seem to have done their research among the highways, byways and alleyways of London's drug dens.
Maybe when doing market research you should include some people that aren't in your target market.