Missing the point.
The original poster was just asking for more information about the OHJ. I believe that everyone flying in the UK should have a thorough understanding of the OHJ procedure - OK so you can circumvent it when ATC is available etc. But, as has been pointed out in other posts, at airfields like Shoreham, Goodwood you may be asked to do an OHJ and it would make sense to know what to do and not make a fool of yourself.