None *et al.*
100, 1 to screw it in and 99 to say how they could do it better.
One to over hype the new lightbulb and one to make sure it breaks within a year.
They're afraid of change.
Answer is 2. One to change the lightbulb while the other screams "REPOST"
Because, if you can't helium or curium , you'd barium!
A gorilla pooped on his face.