Some of my bp's do it; there always seems to be a guarantee they will do it if I'm a day late on feeding (doesn't happen often anymore but I used to buy Petco mice and they didn't always have them...ugh), if I have one or more out at a time nearby each other, or if there's food in the room.
Normal behavior though, as long as you double check temps and feeding size/frequency.
(one of my males used to actually knock everything in his tank over trying to get out, and then get on top of a flower pot rolled on its side, upside down pushing on the lid, and he'd fall backwards and make a nice crash into his water bowl. Not fun at 3:00 am) lol