Niib had a datapad implanted on the back of his hand to perform arithmetical operations while gambling, and so take advantage of the probabilities. Although unusual, this was not illegal.
Niib was known to be a serious person who disliked talking about himself.
In 31 BBY, Niib noticed a guest of the hotel, Dr. Shilaea Motacc, and decided she was a very nice person. Niib was both surprised and disappointed when Motacc apparently died in a supposed cave-in in the Dorumaa Excavation simulation — particularly as he believed accidents could not have happened there.