Meet Flipper the cat.  Poor Flipper was born with a pretty screwed up spine.  While the front half of him walks normal, his spine is all bendy causing the back half of him to walk sideways and stupid.  He's going through a bunch of different treatments that will eventually get him to walk right again, but for now, he needs a bit of help from the local high school robotics team.  They managed to construct a harness with wheels that holds Flipper's back half off the ground so he can scoot around like a regular cat!  Science!