You probably already know that Google famously has a policy encouraging employees to use 20% of their time working on their own ideas for future Google products.
Today there is an article about Marissa Mayer, now CEO of Yahoo, admitting that in her Google days the 20% was never real. It actually meant Google expected you to do 100% of your job plus another 20%.
Do you know who already knew the 20% wasn’t real?
Answer: Every person who ever worked for a big company.