NONE! ITS A SECRET GOVERNMENT PLOT TO KEEP US IN THE DARK!"
Oh don't worry, they'll let you know.
All of them.
Three. 1 to screw it in and 2 to talk about how much better Neil Peart could've done it
A: Change?
A: Scotsmen don't change light bulbs it's cheaper to sit in the dark
None. They just sit in the dark and cry.