Got a minute?
Have you ever realized that the L-O-N-G-E-S-T minute you ever experience is when someone asks you, "Hey, got a minute?" (this may be one of them) ;o)
As I am reading through the chapter "Appropriate Smallness" in The Life You've Always Wanted, by John Ortberg (see sidebar), he mentions the ministry of being interrupted. The whole chapter is about the disicpline of humility in serving others, and I think this section causes us to try and be cheerfully approachable when those (unavoidable, really), times pop up where we are pulled out of our routine to do something, or help someone when you least expect it.