A couple of years ago there was a documentary on a group of what you might call "extreme" animal rights protesters. It was clear from the outset that some members of the group were 'legitimate' protesters and others seemed to be allied to the cause as an opportunity to kick-off as and when. There was one guy who had just been released from prison after serving time for arson attacks in the name of animal rights and within 24 hours of release he was setting fires hither and thither again. Some might see that as commendable dedication but it seemed to me like he was a bloke that likes setting things on fire and the animal rights movement gave him a convenient outlet i.e he was a pyromaniac with a save the whale badge. I could pretty well imagine him setting fires for the first cause that happened along, which seems pretty damaging to the genuine protesters.