I think it's some sort of conspiracy, like people who work in pet stores getting their own back on you for something you did in a previous lifetime. You walk in looking for a nice pet for your kids, so they sell you a cute looking furry thing with razor sharp teeth that are as big as its [Censored] head
It sits there in its cage looking docile and cute and friendly, lulling you into a false sense of security. Then it sits still and watches patiently while you reach in to stroke its soft fur.
Then, with a speed you wouldn't credit; the little [Censored] furry b*stard sinks it's teeth into your finger, before casually wandering off to its bed of shredded newspaper and going back to sleep, while you're stood there in shock watching blood pissing out of your finger.
I mean, why don't they just sell you a nice little Viper or a Funnel Web spider for the kids?
[Censored] furry little [bar steward] [idiot] rodent. I'd feed the little [censored] to my cat if I thought the kids wouldn't notice, which of course they would because they love him because he looks cute. See how cute the evil little bugger looks after I 'accidentally' drop something very heavy on him.