Steve hides in the bushes to spy on customers?!

A former Apple Store employee in Palo Alto, CA talks about how Steve Jobs would hide in the nearby bushes to observe & spy on store employees and customers.
Louis Corso said:
“We would find him hiding behind the bushes or around the corner outside, peering inside to see what was going on. We would go, ‘There’s Steve! Everybody play cool.’ We thought he was evaluating us. It was nerve-wracking.”
Employees at Apple stores provide the company with a powerful window into user habits and needs, even if it is not conventional market research.