Being tied to you boat is a great idea , it will make it a lot easier for search an rescue to find your body. A boat is easier to see then a dead body submerged in the water under a bunch of trees , branches and the rest. :roll:
The two guys on the St.Marys River ( Bear I'm sure you remember that trip) , when they hit the strainer they leaned away from the log and brush pile , the canoe filled with water and over it went depositing them and there gear in the river.
The were able to get away from the boat and the strainer by swimming in the tree , stump , branch filled water. If they would of been tied to the canoe , which went under the strainer and woodland trash , then down river , they would of not been in to good of shape , or breathing , just towed along with the canoe underwater.
By being able to move with out a restrictive line attached to them , all they did was get wet , embarrassed and cold which is a lot better then the alternative.
Personally I don't mind camping early , building a fire , getting them warmed up and drying there gear , actually it was fun because they were still with us.
I do not like transportating bodies out or off of a river , didn't like it when I had to do it for the office and still don't.
Chuck.