Hands up, I didn't know about the Blanket = small pox thing, but for the educated it's a goog gag.
I thought this could do with ending on a shot from the bar of the kid in question, maybe he is actually a baby playing in a sand pit or just a teenage kid dressed like a chav/goth/whigger or just in all his Native American garb? Dunno, but it has the skeleton of a nice sketch.