Can't post a toy in the UK with batteries in anymore :-/

so i toddled off to the post office with my parcels and the clerk started asking bizarre questions.new ruling that you can only send batteries like AAs etc in the UK if they are new and sealed in original packaging :-/ i used to work for the post office for many years so knew about hazard restrictions etc but this seems a bit beyond silly.
maybe some posties lick the batteries?? rant rant!
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