None. That's a hardware problem.
Only one, but the light bulb should be willing to change.
None. Who do you think broke the filament in the first place
They grab the stack of un-signed adoption papers, stand on top of them, then proceed to change the light bulb.
None, they prefer the dark.
He followed the shampoo instructions.
He wanted arrays. It had to be reiterated several times before it was sorted out.
None that's a hardware problem