I've only ever had guinea pigs and fish, and seeing as the fish can't run away easily, I'll have to tell of my guinea pigs.
It may seem crazy, but guinea pigs enjoy going outside and sitting in grass. I watch them carefully of course, because of neighborhood cats, but one day the pig I named Patches ran into a low bush... dont know name, but its a thick evergreen bush thats really close to the ground. I basically had to crawl around in the bushes, hoping I didnt squish him. He looked terrified... serves him right for taking off like that... lol.
Midnight was probably the worst though... dont know how she did it, but while I was at school one day, she toppled her cage over. I almost gave up on finding her when I looked behind the couch and saw those beady little eyes... little fucker scratched me up good when I had to grab her.
So nothing but a couple rodent stories... but they're soooo cuuuuute!
Jam it back in, in the dark.