I dont go aground, often, if it is shallow I proceed slowly and if I hit a bank I throw it in to reverse pdq, check behind for branches!
On a river i usually keep well out from the bends where sand might form a bank.
Generally, i keep the boat in the centreline of the canal where it is deepest. If someone comes in the opposite direction I knock the throttle off and move gently to the right of the centreline. He should do the same.
I keep my pole, on the roof at the back, but not right against the rail on the roof as I may have to grab the edge of the roof.
My pole lives inside most of the time, its not full length.