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giveup...this is the reason that I am somewhat reluctant to use public swimming baths, despite my Diabetes Nurse urging me to do so for exercise, which she says I urgently need. ( that's rich coming from her, who could play Hattie Jacques, in a remake of Carry On Nurse )
When I was a little boy, I used to use the outdoor Lido at Minehead all summer long, and I weed in it very day. And all my mates did as well, and I don't suppose little boys have changed dramatically in the last 50 years.