How could anyone be this mean

As I get older I seem to get more compassionate I hate to see anything suffer, every living creature just wants to live and survive. But I do have to agree there's not much more and vicious than house cats that killed for fun not one creature that smaller than them is safe from a brutal slow death inflicted by their claws or chew off one leg or mame it just enough that it can't get away and amuse itself till it slowly takes its last breath yeah cats kind of suck that way!