to reiterate b-run
a sharp knife with velcro or such to hold it
behind the oarsman seat with instant access
to cut the anchor rope in a emergency
and they happen
a 300 lbs digital scale that is used as weight limit for a passenger and all of their gear combined
and a floating type first aid kit with side and end cutting pliers included to remove temporary body piercing's before the trip home
oh ya and some vacuum packed TP
but most important?
a good attitude to ward off the evil goomba spirits:)
and a "MR heater"