This thread is a bit like another one we have had recently about a crew member doing things in a jump seat...on that one the cabin crew member was accused of picking his nose and ears in full view of the passengers.
No idea if like that one this is true or not but it shouldn't be too hard for BA to find the cabin crew member involved.....it must have taken place on the BA1477. I doubt if they can prove it unless the CC member owns up to doing it. I just hope this forum isn't being used by individuals to "get back" at members of BA cabin crew.