Blizzard has said that some mounts and pets are 1 toon only but my quillen cub shows up on all my characters. Also with the new patch all pets/mounts should be account bound. My fiance got the new panther mount from RaF and it was only suppose to be bound to 1 toon, as far as I know he can do it on any of his toons. This sounds like a bug to me, I'd Open a ticket tonight before you go to sleep and then you should have an answer when you get up.
Well, sugar gliders live only about 5-6 years. As pets, they are friendly if raised by humans and are very human-friendly. But, if you have sugar or something sweet on your fingers, they may nibble due to thinking it is food. They love dark places, and warmth, and they are more active during the night. They love little treats, like dried fruit and, on occasion, white chocolate chips. They are as costly as any small pet, what with the bedding, cage, food, toys, ect. They are very playful, so something to entertain them in their cage would be nice for their active minds. Hope this helps.