I was late for my meeting with the CEO of a technology company and I was emailing him from my iPhone as I walked onto the elevator in his company’s office building. I stayed focused on the screen as I rode to the sixth floor. I was still typing with my thumbs when the elevator doors opened and I walked out without looking up. Then I heard a voice behind me, “Wrong floor.” I looked back at the man who was holding the door open for me to get back in; it was the CEO, a big smile on his face. He had been in the elevator with me the whole time. “Busted,” he said.