Dead.
or
To see time fly.
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Because she would have to move into a smaller house.
or
Time is fun when you're having flies
or
Humpty Trumpty wants Mexico to pay for it all.
or
Because if they flew over the bay, they'd be baygulls!
or
Your breath!
or
None. There never was any light bulb.
Notes: Probably the only really good light bulb joke of 1984.
or