Were-Hamsters

When I was considering the spoof of the Twilight saga, it does make me wonder why every were-creature seems to be some sort of highly aggressive carnivore. Were-lions, wolves, panthers, sometimes birds of prey. You rarely hear of were-hamsters or gerbils or guinea pigs, or even gazelles.

A friend proposed that a were-creature has to be aggressive, and carnivorous because they're more likely to bite. However, were that to be true, then we should be having a lot of were-hamsters and perhaps were-mosquitoes, since they are biting creatures and may well transmit the were-syndrome.

I think the general rule is that a were-creature has to be conceptually cool. If the creature in question is not cool, it is unable to transmit the were-syndrome. Alternatively, an uncool animal may be sufficiently unnoticeable that a were-uncool animal would pass unnoticed and never be noted in popular folklore. Of course, I have little doubt that the ancient lorekeepers have records of these creatures hidden somewhere in their archives.