Old Indian saying (so I am told)
GREAT SPIRIT
Grant That I May Not Criticize My Neighbor
Until I Have Walked A Mile In His Moccasins
Now where are mine?
Found this Article
http://beacon-pr-travel.co.uk/2013/11/11/waterways-holidays-announces-the-first-narrowboat-for-hire-on-the-norfolk-broads/
And this
http://www.waterwaysholidays.com/detail/maffwhisper.htm
These things are common on the Thames and Severn, both of which have strong currents. I have seen them several times going through London. I think the art is experience and preparation. So I agree that in the hands of the inexperienced Reedham could be dangerous..