Apparently the ones that like bitter treats are really smart...

[He prefers sweet himself. If eating ice cream whatever the weather, whatever the time, would be any indication.]

Belle will eat anything as long as it's food. My other two are really picky about what they like.

[Once Vivi is done eating, he cleans himself before climbing back onto his trainers head and hiding in his hair to sleep.]

My friend Rin told me that feeding them too much human food can make them really sick.