This happened last week at Bournemouth
Tower: Coastguard, are you able to use the Southern Taxiway to complete your manoeuvres.
Coastguard: Uh...I'l do what ever you want me to.
Tower: If it's good for you then it's good for me.
Coastguard: I can't believe you just said that.
Tower: I know...I feel a 'lil bit dirty myself.