.
Anything that causes unnecessary pain.
Necessary is that required to maintain life and well-being -
things like undergoing medical treatments.
Oh my gosh. A 12-year-old who justifies slaughtering animals for the thrill! That is heartbreaking. Thank you for your reply and link AndyB. I feel like I need a shower. A slimy feeling has overcome me after having read that! Not your fault my friend. Not your fault. :(
Thank you for your reply hartfire and Happy Tuesday! :)