It all has to do with intention. Crude examples: euthanizing a dog. My family friend euthanized his dog because it was cheaper to get another one. He was fully able to pay the medical bills for the dog. Stamp money. The dog was only a year old vs him euthanizing a dog because she had a problem the vet could not fix and she would not live a good life Example 2: a woman murders a man because she disagreed with his opinion vs her murdering a man that tried to attack her in her home. Example 3: burying a dead dog vs throwing a dead dog into a hole in the ground. The end result of these examples are the same: the woman killed a man, the dog is still euthanized and the dead dog I still in a hole in the ground. But the context or intention behind it is what makes the difference. Culling a normal ball python to feed your other snakes to me is ok. But culling a normal ball python because you don't want to take responsibility for it financially even though you're fully aware of the fact that when you breed certain morphs together you'll get a normal to me is unacceptable.