Rip Van Bob

Bob took naps during his lunch hour.
His coworkers teased him about it, calling him Rip Van Winkle.
One day, Bob napped, and his workers made an elaborate prank to make him think he was waking up in the future.
They sprayed his beard and hair white, but he was severely allergic to the spray dye and fell into a coma.
After 20 years in the coma ward, he woke up.
He looked in the mirror.
“GAH! I’M OLD!”
During his painful lengthy rehabilitation, he dyed his hair and beard black.
Same chemicals, but no coma.
This time, he died.