I have been studying the girl human closely whilst she's been off work with her sore leg and have come to the conclusion that 4 legs are definitely better than 2.
The girl human has been hopping around using 2 sticks called crutches to help prop her up. She is clearly pretty useless as yesterday (even with the crutches) she managed to fall over and hurt herself quite badly - she now has new bruises to add to her collection.
If she had been born for 4 legs this would not have been a problem. Let me demonstrate. Here is me pretending to have a sore paw (left front). Even though this is not on the ground, you can see, I am able to easily balance on the remaining 3.
Another piece of evidence (as if further proof was needed) that cats are clearly superior to humans. Poor things. FAZ