An early manga chapter features Jigen riding in a car with a mob boss and his driver. The following exchange occurs:
Driver: Hey boss, do you have a detachable steering wheel?
Jigen: There's no such thing.
Driver: Then we've got a problem.
Boss: Stop the car!
Driver: No can do, boss.
Jigen: What's stopping you?
Driver(looking out the window of the car, which is now falling from a cliff): Gravity.