These days our lives are beset by rules and regulations. But have you realised that who ever makes them never bothers to put up a notice telling us what we can do. He's much too busy putting up notices telling us what we can't do. Take the average man who goes out in his car. He's immediately faced with No Right Turn, No Left Turn, No Overtaking, No Entry, No Exit, No Waiting, No Parking and he's in a No Through Road so he's had it for a start. As he can't drive he decides to have a drink, mistake number two. He's met with No Dogs Allowed, No Children Allowed, No Singing In The Bar, No Betting Slips, No Cheques Cashed and No responsibility whatever taken for his coat. So, what's left? A quiet walk in the park? Ha, mistake number 3. No Paddling In The Pool, No Climbing Trees, No Leaving Litter, Trespassers Will Be Prosecuted, Keep Off The Grass, Don't Pick The Flowers, Do Not Touch, Keep Out, Penalty Five Pounds. Of course, the Navy has it's forbidden areas too, and never more so than one of Her Majesty's dock yards. As Sub-Lieutenant Phillips is about to discover as he lunges in all innocence at the bottom of the gangway to H.M.S. Troutbridge.