Related:

• Why did the light bulb fall out of the tree? Cos it was autumn. (eh?)
• Why did the light bulb fall out of the tree? Cos it was doing an impersonation of the sun, setting.
• Not the brightest bulb on the Christmas tree.
• Q: Why did the first koala fall out of the tree? A
  It was dead! Q: Why did the second koala fall out of the tree?...
• A few too many lights out in his Christmas tree.
• How many Blue Peter presenters -- does it take to change a light bulb?
  Two. One to change it, and one to turn the old one into an attractive Christmas tree decoration....
• Christmas tree packet: n. A packet with every single option set for whatever protocol is in use.
  See {kamikaze packet}, {Chernobyl packet}. (The term doubtless derives from a fanciful image of each little option bit being represented by a different-colored light bulb, all turned on....
• No, light the OTHER end of the stage tree!
• How many Zen masters -- does it take to screw in a light bulb? A tree in a golden forest.