None. That's a hardware problem.
Four - three to cut a hole in the roof and one to change the bulb.
No IT guys change light bulbs, they just keep flicking the switch on and off again until something happens.
None. We pay a German to do it.
They don't change it, they just take forever to find where to fit the batteries
A log dump!
Because they were handing out guides for the deaf.
None. That's a hardware problem but have you tried turning it on and off again