We (non-vegans) have animals incarcerated and killed for the pleasure that eating them and their by-products give us. We don't need to do this, we could all survive on a vegan diet. I fail to see how having an animal killed to give us fun differs from killing an animal for fun. Although, having said that, I'm sure that Cecil, a whilst alive, had a much better quality of life than the vast majority of cattle, swine and fowl languishing on British farms.
Following the logic of your nonce analogy, there must, in your mind, surely be no difference between having a nice bacon sandwich and going to Cambodia to rape children