Hi,
i would imagine the guy was having some fun wearing the hat and headset together. As for a guy stopping the aircraft and getting the F/O to put their tie back on, surely nobody could be such a bell end !!.
Its about time the company ditched the hat to save some costs. Ditch the silly gold wings on our shirts too.
Bring on the freighter, hopefully wont be reported for wearing my shellsuit, tucked into my white socks, slipped into my oh so cool crocks !!.
Rgds.