Wrong Horse Takes His Own Scalp
"Oh, hey there! Have I got a deal for you! Looking to buy a horse? Well I have a genuine Sioux warhorse here, for only $75. And at that price, I'm taking my own scalp!"

"What? Nah, you've got the wrong horse, I've owned this guy since he was a colt! Ignore the fact he responds to the name of that other horse..."

"Oh, and if you'd like a snack, well, I have some pemmican-inna-bun for sale. Premium quality buffalo meat! And, er, some other meats, too. Buffalo are a bit scarce round these parts, you know how it is..."