I don't usually pickpocket out in the wild, against bandits or whatever- their pockets are usually pretty empty, compared to what you can get in towns. But today I just happened to be behind a Forsworn Briarheart dude, and opted to stick my hand in his pocketses to see what he might have, on a whim. Not much, it turned out. Just a 'briarheart'. Meh, whatever... so I stole it. The bugger gasped in terminal agony, and keeled over dead as a muttonchop.
After a second or two of bemused WTF'ing, I realized the briarheart I'd just pilfered must be his magical 'heart', and I'd just basically stolen his heart... and not in a romantic kinda way. Poor bastidge. Well, at least now I know an easy way to off those vermin, without even having to get my dagger bloody.