I can't remember if the CC stood or just shouted at him to sit down, but what is the procedure when this happens? Are CC allowed to get out of their seat at such a time?
I was on an Air Finland flight recently and a passenger got out of their seat just before take off. A sharp "Sit Down" came over the PA. I assume the passenger complied.
Earlier this year I was at Terminal 5 LHR (BA Terminal) waiting for my bag. Things did not look good, no more bags on the belt. Another passenger, also waiting for their bag, turned to me and said "British Airways flight?"