Ok - I have been doing my research and here are a few things that "might" be a problem...... ?
(nocturnal, scent marking, toiletry behavior)

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When a sugar glider is startled or disturbed, it may produce a number of vocalizations. Often referred to as "crabbing," the loud and high-pitched sound resembles that of the grinding motor of an electric pencil sharpener or chain saw. It is an auditory signal that unmistakably indicates that the glider is not a "happy camper." Sugar gliders are not incessantly noisy animals. However, since they are an intelligent animal, they have a recognizable language with several distinct barks, chirps, gurgles, and chatters. Their communication is audible to the human ear. And they are able to project sound as far away as several hundred yards. Which, of course, is an understandable necessity when you consider the fact that in the wild, sugar gliders naturally communicate with other gliders in other treetops.

Undoubtedly, "crabbing" can be a potential problem for some would-be sugar glider owners. So can scent-marking! Simply another form of sugar glider communication, each sugar glider has its own unique "signature" scent, and also carries a "group scent" which identifies the sugar glider as being part of a particular "family" of gliders. Each scent gland on a glider has a distinctive smell and consequently makes it possible for him or her to convey complex combinations of information to other gliders. The sugar glider scent can be described as a sweet musk. Some people like the smell; others find it revolting. Keep in mind, the scent is heavier in the sugar glider's nest area and usually much less noticeable on its body. Mature male sugar gliders can be identified by their diamond-shaped bald spot on their head, which is where one of the male's scent glands is located. The dominant male in each family will use his scent gland to mark his family members by rubbing his forehead and chest on their bodies. He will also scent mark objects in his cage. And there is simply no controlling this habit.

There is also no controlling a sugar glider's toileting behavior. Sugar gliders cannot be housebroken. And as such, they urinate and defecate wherever they happen to be at the time. Which means, of course, that you should not be surprised when your sugar glider "poops" on you. Fortunately, sugar gliders tend to do most of their "potty business" when they first awake, so you can avoid many accidents by simply permitting them to complete this task before picking them up. Also, sugar glider waste matter is small and solid, and easy to remove from your clothing -- not at all like the runny consistency of a bird's waste. It is, however, a nasty habit that you won't be able to change in your pet sugar glider. In sum, although sugar gliders possess some endearing qualities which make them the perfect pocket pet, the potential owner must be aware of the handful of drawbacks and warnings associated with this remarkable species. Each year, hundreds of sugar gliders are neglected and abandoned by owners who had impulsively purchased them before researching their habits and needs.