Nah, it's a true story... My friend went to pickup his cousin in his Mustang. After we got his cousin in the car he slaps a $20 on the dash with some chewing gum. The cousin gives him a weird look. He then tells his cousin that if he can grab the money off the dash it's his. The cousin was never able to grab the $20. Of course we were picking him up at the hospital with two broken arms...
I heard the rule was as stated earlier you are not allowed to grab the door or use your hands or arms to push yourself forward. I always assumed it was true I had a friend who had a low 10 second $#%^%$@ with 575 supercharges horses and it sat your ass down. I believed it after that. but never tried it.
Sheesh! Everyone knows you can't grab the twenty when your buddy's car is pulling the wheels in all four gears! Come on, wisenheimers.