Our family once had a cat taken in from the alley. Meaty like a body builder, not bony and fat like a typical house cat. One time I rustled my fingers under a newspaper. The cat got the owl look in its eyes and then finally pounced. Its chest flattened my hand with its full body weight, I felt both upper and lower teeth trying to bite the back of my hand and I got multiple claw skin punctures. All in a simultaneous instant. Mouse or larger wouldn't stand a chance. That cat grew up tough and mean.
Our regular house cats would just swat in fun, not even a claw out. An orange kitten we kept basically turned into a fat Garfield.