the tall whites and the greys !

the bloke who fixes my car  is one of those alien seekers and spends most weekends in rettenden forest all the way down in Wiltshire  hoping to see feckin aliens and the like ......don't ask ! any way he usually rambles on to me about seeing all sorts of strange entitys ........i know !..........when he goes on about what he has seen  i mostly just nod and agree to humour him  and i don't want to take the piss out of him as he might put a few quid on the bill   ,but he has been describing these greys ,and tall whites ...............tall white fellas about 8ft tall and can appear or dissapear at will and the greys ! tall grey fellas ..............yeah i know ! i thought he must be hallucinating from lack of sleep or he had stumbled onto a kloo klux klan get together ,  but the other day i just caught the ending of  a programme  on the telly about these tall whites missed most of it  .............anyone on here have any stories or news of these imposters ? have ya seen em ?