Lighten up victor. You try to talk to them they get mad, or deny its their cat. Call animal control, owner denies and gets mad. Try takin a cat or dog you just killed to its owner. Now you gotta prove it was on your property not theirs. While your moral lecture sounds good, and very "manly" it is nonsensical, and "extremely confrontational. Cat owners as a general rule, very lackadaisical, and let their cats roam. If you don't great. But your the exception not the rule.