Secateurs

[spuddy]

More useful on board than I first thought: jointing chicken, severing electrical cable and string of various thicknesses. No pruning yet

[claymore]

Invaluable when approaching a French Port. Just brandish them aggressively shouting 'Secateurs - mes amis - j'aime Charlie 'ebdo' - The Harbour Master will direct you to the prime berth and les Douaniers will keep their distance.
Who knows - they may even prove useful in a Brexit argument