Last week I had lunch again at a nearby restaurant I've been going to alot. The waiter I got was one who had waited on me a few months ago. I brought it up by saying that "you were my waiter a few months ago..." I went on to say I was glad for that because I knew I was in capable hands.
I wondered later, would it be more polite to put it this way: "I was your customer a few months ago"? I thought maybe saying that "you were my waiter" sounds sort of condescending. What do you think?