I would rather my body be left out in the desert for wild dogs to eat.
However, when my best friend died, I did feel it was my duty - no, actually, my right, on which I insisted on taking from one of his bastard family members - to help carry his coffin.
But yes, it was creepy thinking of him in that box.
It was creepy seeing him lying dead in the hospital too.
It seems weird to have to do it for someone you didn't even care for though.
I think I'd have said no, given how busy you are.