trying to sell really durable Tupperware products and breast enhancers?
Uncle Rico is like a traveling carnival ride operator, with optional teeth.
You know one of those guys that chats with kids on the other side of the fence at the public pool , and when questioned he says's that he's waiting for someone.
You feel guilty for staring at him yet you can't look away.
In Kansas we call these kind of guys- "creepers".