Oil company Christmas party in Darwin about 10 years ago 214ST bringing in Santa, told said oil company all reqd distances for downwash etc, but they knew better! previous years had been a 412 .....lot less downwash , they assured us plenty of room, said 214ST arrives, lots of small very happy children, moments later lots of small human tumble weeds, tables and santas thrown all gone , bloody funny later but not at the time, though I had to fight hard to keep a straight face after shutdown , picking up small human tumble weeds in between sobs asking why Santa blew them away.