It turns out my definition of polite friendly swan is thought by others as
"Fuck a feathery dinosaur is trying to break in and kill me!!!"
The best part is he thought she'd gone ......
But she was waiting patiently at the back door in the wheel house.
Again, what I consider a friendly flap, others consider a full on ninja swan attack from the aft.
Makes more sense after reading this thread how confusion arises.