The article below states that to prove that your eligable to rent, yes rent the bike, you need to prove yourself. On what, well the zx10r.
http://www.motorcyclenews.com/MCN/News/newsresults/mcn/2008/February-1-3/11-17/feb1107ducatidesmosediciavailabletorent/?&R=EPI-98508
"A motorcycle rental company in the USA have taken the decision to rent out the Ducati Desmosedici.
* See the Ducati Desmosedici been built
* Watch MCN's full test report on the Ducati Desmosedici
The company, called We Rent Motorcycles will rent the motorcycle for $600 a day or $3,800 a week on the condition that it must only be ridden on the road and not on the track.
As well as this you must also have a reference from a reliable source such as a Ducati dealer, weigh less than 250 pounds fully kitted up, ride a Kawasaki ZX-10R to prove you are comfortable on a sports bike and pay a $25,000 deposit by credit card if you are to ride the bike.
The company also have the CAN-AM Spyder available for rental, along with several BMW’s and Kawasaki’s GTR1400.