I have flying snakes. Mussurana's after dark. Open their enclosure after dark and they launch out like they're spring-loaded. And mean/irritable. By day they are mild-mannered, calm, sociable, predictable, and very handleable even though they're "warm herps" (venomous). but oh man, don't mess with them after sundown. They're the complete polar opposite especially when they're hungry. Their ability to detect a pinky mouse from across a room is uncanny and their feeding response is downright scary and violent. After dark that is. Lazy, calm, tame, and not the slightest bit interested in food by day. But after sundown, they will fly at your face and literally rip pinkies to pieces.