Light bulb jokes
How many people it takes to change a BBC lightbulb?
The member of staff left in the dark would need to find a clerk to get a reference number so that the repair could be paid for, then report the fault to a helpline. An electrician would ask the store manager for the part and install the bulb, making a total of five people.
And to think npower sponsored the BBC ten pounds for every lightbulb joke it told on Comic Relief day..