I confess, my dog has run of the (very small house) I live in. She and gliders have sniffed between the bars, both sides being as curious as the other. I've had my dog with my little dragon out, she is good with him, and she has been introduced with scrutinizing supervision on several occasions to the gliders. We do a brief meet & greet, nothing long and have no trouble trusting her, she looses interests in them very quickly. Now, I wouldn't allow gliders out & about unsupervised anyway, but I figured, with the understanding of each other, if the gliders ever got loose, they'd have a better chance if my dog knew them and that they're part of the pack. I understand some disprove all contact with other pets, but I don't agree totally with that, I feel with discretion and supervision, and the knowledge of your pets it can be possible that some pets can and are ok with gliders. It has been my experience and also from other sources where some other pets take on a protective and nurturing behavior with other smaller pets.