just tell them that they are a bunch of workshy, gay cvnts who are as much use to the defence community as t1ts on a fish. They also enjoy it when you tell them that the 100 year experiment comes to an end on 31 Mar 2018.
I pity you mon brave. I hope you're filling a few of them in for me!
I suggest you fake a DIN which describes the formation of the Defence Flying Services on 1 April 2009. In it advise that all RAF personnel will be remustered into the Navy, unless they elect to be posted to the AAC by 16th March. Put in some stuff about drill courses for those electing for AAC and note that officer-pilots RAF will be re-mustered as Cpl Pilots -AAC "because the Army does not commission its drivers" etc. finally add that the wearing of flying clothing in the the new DFS/AAc will be restricted to aircrew, operationally serving and during flying activities only...
If non-aircrew, tell them you know aircrew call them blunties and constantly refer to them as such. If aircrew, tell them they only joined for membership of a flying club and ask them when was the last time they passed a bft.