I can only conclude that the person who made this has never met a three-legged cat:
from graphjam.com
Even our cat-phobic neighbour fell under the spell of the furry menace once he only had three legs. Unfortunate? Certainly. But most definitely ad-awww-able.
I honestly don’t think I’ve ever got up-close and personal with a three-legged cat.
However, I have no faith whatsoever in this chart: the one-legged pigeon I saw many years ago in Birmingham was by far the cutest pigeon I’ve ever seen, and I certainly don’t react to eight-legged beasties the way the chart suggests I should.
Now, nine-legged critters …