I've read they do nip, but only if they aren't handled right, and hey, don't we all, in our own way?
I'm evidently short of tea...for a WTF moment I read that as 'but only if they're right handed'
That reminded me of visiting a friend who was looking after a degu during the school hols. It had escaped but I managed to catch it, so of course it bit me. Fortunately I'd had a tetanus booster the day before. Anyway... take a look at this...
en.wikipedia.org/wiki/Common_degu
...I think they may be a bit less, er, drama Queen than the chinchillas. The only problem is they're very prone to diabetes so I'm not sure how we protect them from the tunnocks and cakes.