My ears are hallucinating

A yacht is never silent, with many different sounds from the boat itself
and its passage through the water - we subconciously listen to them and can
quickly tell if anytthing has changed, almost without thinking about it.
Its a atrange phenomenon, but, after you've been at sea for a few days, your
imagination starts to kick in big time.The result is that your brain starts
to misinterpret these sounds. Ive heard what sounds like Radio 4 and a
mobile phone several times, as yet from unidentified sources, the chatter of
the water past the hull sounds just like a crowded bar, with the occasional
roar of an appreciative crowd at Twickenham and the rocking of the gimball
mounted radar like a village church bell. In one's sleep-deprived state, it
can be very disconcerting. Happily, I've not had any visual hallucinations
yet, like that of Joshua Slocum, who was visited by a conquistador who
helmed his boat for two nights while he suffered from plum poisoning.
Richard is very relieved.
Trev