I was at my regular job today. I work for a football team, and it was GameDay. I watch the new computer controlled turnstiles to make sure nothing goes wrong. One of the supervisors there was talking with me and mentioned that she had a headache. I reached over, waived my hand in front of her head, and then took it away. She looked at me wide-eyed for a moment, then said 'thanks'. Her headache was gone. I just love doing the spontaneous and surprising people.