I haven't been, but one of my housemates has, and although his cocktail tasted revolting (he made some for us afterwards), there was nothing that could have harmed him in it.
However you can still do it with Milk, or Water, heck maybe a Coca-Cola instead? it doesn't have to have alcohol in it, it just states "a pint"
Pathetic how easily people feel the need to cave into peer pressure.
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