What is Up with the Rug Guy?

Driving down State Street in North Bismarck, I noticed a pretty interesting sight. 

It was a guy holding a rug sign, probably for a local business nearby. The funny thing about it though was the fact that he was dancing pretty hard with that sign.  Now mind you it's EVERY WEEK I see this guy and judging by his appearance, he looks like a sign holder for hire rather than an employee of the rug store.

The way he dances though begs me to ask the question ... what is the story  with this guy?  Here are some ideas:

• Probably is on acid if he's unaware of this surroundings and is just doing the same thing over and over again. Trust me I've been there (did I say that out loud?).
• He's homeless and just happy he's getting paid today so he'll get to finally eat later?
• He's crazy and just happy that he's not in shock treatment today in the mental hospital?
• He is just one of those people that makes the most of their job and has fun with whatever he does?  If that is true then that's awesome.

Something tells me that it might be one of the other choices though.  Don't take my word for it though, drive by and see for yourself.