"the best way to kill trolls is to stop feeding them!"
Actually, the *best* way to kill trolls involves several sheets of coarse sandpaper, a flensing knife, a bottle of Dave's Insanity Sauce and several large rats. However, in this civilised era we frown upon such behaviour - chiefly as it's hard to get the stains out of the carpet - and so we go for the second best option.
Still, those were the days. <sighs nostalgically>