Bike Anti-Porn - When Things Go Wrong

I was thinking about this just the other day out on a ride..... how cool would it be to have sail on your bike, i mean those winds must be useful for something.
And someone stupid enough actually spent their time to build one.
Surely you're route will depend on where the wind is blowing (good excuse not to go to work?)

And why does his chainring always jump from one side to the other?

Some pictures are reversed so that the logo is always the right way round, even when seen from the other side of the sail.