One day Mark Zuckerberg was ordering coffee at his favourite coffee
place on the Facebook campus. While he was stirring in his sugar a
pigeon flying overhead defecated right in his cup! He couldn't believe
his bad luck.

The barista stifled a laugh and quickly made him a replacement coffee.
"You're Mark Zuckerberg," he said, "I'm sure you could figure out a way
to make it so the pigeons around here didn't poop."

Mark chuckled and said, "That's crazy," but as he took the new coffee
and walked away he couldn't shake the thought. Was it really that crazy?