I used to fly as CC for a number of years for a couple of well known airlines.
One day, during the drinks service, a pax asked me " at what height are we flying at the moment" to which I replied "i'm not sure, I'll ask the captain for you" to which the pax looked shocked and replied " you don't know and you work here" ??!! "oh hold on I'll just my inbuilt altimeter"
Is it just me or was that a dumb thing to say. How the heck would I know what height we're at mid service!! Anyway, I just gave him a "right, oookkkk, look and walked off!!