Many many moons ago, before the iPhone existed, I found myself reading an email from Steve Jobs while coding in the garage at 3:30AM.
The email exchange had to do with difficulties we were having working with Apple hardware in the context of hardware we were developing. I reached out to Steve at 3:00 AM and got a response thirty minutes later. After replying with a detailed explanation of the issues we encountered I got a one sentence reply back from Steve: "I understand".
The next morning, actually, later that same morning, I got a call from someone from Apple. He said "Steve asked me to take care of this". That person was Greg Joswiak. We were invited to come up to headquarters to discuss the issues and work out a path forward. I met him and many other members of the engineering team while there.
Small world.