US television series Hoarders had viewers mesmerised as they watched everyday people collect (and ultimately part with) extraordinary volumes of weird and wonderful objects. Most people can relate to holding on to a few unnecessary items, things that get stashed in the spare room, garage or under the stairs, never to be used again. Below are 5 categories of extreme hoarders. Have you ever hoarded anything a little unusual? Cats? Rubber ducks? See how you compare.