A decade before my birth, my parents (and my mom's parents) took off on a road trip to South Dakota, to see Mount Rushmore, the Badlands, and the surrounding region.
While in the Badlands, they went to a restaurant/gift shop for something to eat. My grandmother ordered a bison burger, but she could not eat it all, so she discreetly wrapped the rest of it up in an array of napkins and stashed it in her purse while no one was looking.
Later, after everyone else had finished and were perusing the gift shop, she approached my dad and said "hey, look what I've got!"
He looked down, thinking that she was going to get in trouble, for she looked as if she was shoplifting.
There, looking back up at him, was a half-eaten bison burger.
In 2012, on the return to the Badlands, we stopped and ate at the same place, and ordered the same thing, in the same booth.