Couple years ago flying a Four hour sector at night .
Two hours into the flight, moderate turbulence.. We put the seat belts on..
CC calls inter phone : " Is that for landing ? "
Irritated with the dumb question we say Yes
CC made all landing announcements and secured the cabin , called us back and gave us the Cabin Galley Secure Check .
The head crew looked like a red tomato for the rest of the flight .
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Another one :
Seat belts on for moderate turbulence .
CC calls : Can we allow washrooms one at a time ?
Me : Do they generally go two at a time ?
CC : Hehe
Me : Does the procedure allow you to allow washrooms ?
CC : No
Me : Then my answer is No as well