The "Mr Sharks" (NEVER Sharkey) from Yeovilton who I met a few times in the late 1970's was also a nice chap. He and I both helped out on one of the local farms at harvest and sheep-shearing time. As far as I'm aware he was also responsible for Father Christmas arriving at the local school in a Wessex 5. I suspect it was actually him in the beard, though I'm sure he won't thank me for saying so.