She was caught taking a brake.
or
It's not a bulb, it's a globe.
or
The Bunsen burner replied, "It's just a phase you're going through."
or
At the crystal ball.
or
A cow on a skateboard.
or
Time is fun when you're having flies
or
Sorry, light bulbs are an evolutionary dead end.
or
Because he got into treble with the cops
or
A chili dog on a bun.
or