Have you ever sailed on a cruise and the steward neglected to stop by and introduce himself/herself?  We had that happen on only one cruise. I am assuming that we just kept missing each other.   After a few days and he had not stopped by, we began to inquire of other stewards if ours was around saying that we just  wanted to meet him ; he never seemed to be there.  We communicated through notes left in the stateroom.  The service was excellent and he fulfilled all our requests but we never saw him.  How strange!