Only 1, but it takes them 15 episodes to do it.
One to screw in the lightbulb, stock four carts of supplies, and handle seventeen simultaneous customers at any one time for five consecutive hours.
Driver
Just one... But it takes 4 episodes and Krillin dies...
One less now, because the one who tried to steal the light bulb was shot by the cops.
Just 1...blondes will screw anything.
Make it sew number 1!
A: A dope ring.
Guesu