Not always. There are some companies that don't have enough liquidity to effectively make that trade or have no investors willing to lend the shares. Not to mention shorting (or options) aren't even allowed yet on this particular stock.

But in this case there is almost a certainty that people would accept your short. I would.

except that's not how shorting stock works. it's not a person-to-person deal.

If you want to know, I tried shorting it at 110 just for the heck of it. tdameritrade says 'this stock not available for short sell'.