So, If Two Negatives Make a Positive . . .

. . . do two wrongs make a right?

Not as a rule, but it has exceptions.

One must consider the functional limitation of two negatives making a positive. It occurs when we multiply and divide. It can also happen in subtraction, but a prerequisite is that the negative being subtracted is larger than the negative from which it is subtracted. Addition by subtraction may have a positive result, but subtracting a negative has the same result as if you were to add a positive of equal value.

This question poses an additional negative to an original negative. You will end up with a larger negative (wrong) as a whole, regardless of how small the 'added negative' appears relative to the value of the original negative.

Now, if the second wrong is something like shooting a criminal who is threatening your family or property, then the second wrong has the added element of actually subtracting a negative. Society may benefit for the 'second wrong.' On the other hand, it's pretty difficult to conceive of protecting one's property and family by killing someone attempting to harm or steal your property or family as 'wrong' when it is really 'your right.' To me, it doesn't seem to apply.

However, one's reality is from his or her perspective, so, if, to you, killing a criminal threatening your family or property as 'wrong,' then 'it is possible for a second wrong to really be a right.' In that case, you would need to change your perspective because it still doesn't apply, and you'll be better able to see reality.