A beautician? She is old,senile and never liked people too much,and smack you if you take liberties (which means pretty much anything she doesn't initiate)... would you go to a beautician like that?
I actually think that killing and eating a pray is what cat do...
even indoor cats need simulated hunt for mental well being.
Nature obviously provided cats with the body and mind to be hunters,if it was dangerous how can the success of the specie and number of cats out there would be justified...