为什么我们在吃肉时没有恶心感？

美国民歌《老狗布鲁》：大意是说我有一条好狗名叫布鲁，布鲁捉负鼠超能干，捉到负鼠我拌上地瓜炖了吃，我一口，布鲁一口。后来布鲁挂了，我给他戴上金链子，用银锄头埋在了后山上。布鲁啊，你先走，我很快就去找你了。等我也到了天堂，第一件事就是吹响狩猎的哨子，天堂里有很多负鼠，到时候还是咱俩分着吃。好狗布鲁啊，你先走，我随后就跟上。

——那么问题来了，为什么负鼠上了天堂还要被人吃？为什么狗上了天堂还要给人当奴工？

Yah, old Blue
You good dog, you

I had a dog and his name was Blue
And I betcha five dollars he's a good dog, too
Come on, Blue
You good dog, you

I shouldered my gun and I tooted my horn
And I went to get a possum in the new ground corn
Come on, Blue
You can come too

Old Blue bayed, and I went to see
Blue had a possum in a 'simmon tree
Come on, Blue
You good dog, you

That possum come out on a swinging limb
Blue barked at the possum, possum growled at him
Come on, Blue
You good dog, you

Blue grinned at me and I winked at him
I shook out the possum out, Blue took him in
Come on, Blue
You good dog, you

Baked that possum nice and brown
And I layed them sweet potatoes round and round
Come on, Blue
You can have some, too

Well, Old Blue died and he died so hard
He shook the ground in my backyard
Go on, Blue
You good dog, you

Dug his grave with a silver spade
Lowered him down with a golden chain
Go on, Blue
You good dog, you

When I get to heaven first thing I'll do
Take my horn and blow for Blue
Go on, Blue
I'm comin’ too

Come on Blue, come on Blue
There's a possum in Heaven for me and you
Go on, Blue
You good dog, you