Dermod of Salisbury raise a very interesting point, that's made me think. people are quite inconsistent, perhaps using thee in one sentence and you in another. And the y/th interchangability is obvious in a lot of speakers. Old-fashioned Cumbrians(and many not so old-fashioned) will always say "yon" but they'd never say "ye", only "tha/thee". And there is nothing incongruous in a Stoky saying "Take thi coat off. Drink your tea".