Guard commander at Lyneham one night and a call came through to me at the gate from MOD operator rather than being directed to Ops.
"One of your helicopters has been worrying my horses"
My honest reply "madam we don't have helicopters here but horse worrying is probably a police matter" line went dead, but my phone lit up shortly after 8 the following morning as I was summoned to OC Admin to explain myself.
I believe the unidentified helicopter got away with it!