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?