Now thats funny Stefan- and probably accurate for some people.
Like James said, there are responsible, qualified people out there, that keep them for more valid reasons, but there just arent very many.
Just have to watch out for the ones that just want a venomous or large snake for no other reason than that they can call all their buddies over to watch it kill things for fun.
I think its usually fairly easy to decide if someone seems to have a legitimate interest and knowledge in them just by talking to them a bit.