Hiplok: A new hipster lock

Needs more groups to test all variables...

hipsters locks pushed over
hipsters locks upright
hipsters no locks pushed over
hipsters no locks upright

Consider then having the same 4 groups but remove hipsters and replace with normal folk

Maybe even repeat all 8 groups but without bicycles, to measure the effects of simply falling vs falling off a bike.

Hipster Mythbusters special ? They're in San Francisco, so should be no shortage of test subjects