After a mutually beneficial business connection, he spontaneously offered, "if you need anything in the future don't hesitate to contact me." He went so far as to name some of the things he'd be happy to be involved in, or help me with, and I made a mental note for future reference. It seemed more than an obligatory remark from this well recognized individual.
A few months later, remembering his persistent offer, a situation arose where his input would indeed be helpful. So, after pondering whether his offer was meaningless chit-chat or a sincere offer of assistance, I decided to contact him. ...