Trolling is the act of posting or uttering a troll, and you can't troll accidentally. That would be like dragging bait through the ocean accidentally. It has nothing to do with bridges or goats or or any of that crap. Trolling aims to elicit an emotional reaction from those with a hair-trigger on the reply key. It is the art of identifying people whose eye-rolling mechanisms are defective.
Trolls are always funny.
Trolling is not the same as flame baiting .