While curiously browsing through the GliderPedia, I found that onions are a part of an average SugarGliders diet, yet in the store where I purchased him, which is a very established place where many are sold, specifically and sternly made it clear that onions will kill a sugar glider! She also said that if I were to use a knife to cut the onion for dinner or something and then use the same knife the cut his fruit the juice could even be enough to severly hurt, sicken, or more than likely kill him. Is this true or false? Please advise! Thanks!