I totally agree, "if" they exist, one thing that is practically certain is that they are not a threat like some other large animals; african hippos as you mention reportably being the worst of the bunch.
In BC (especially up north) the most dangerous animal around is the moose. Kinda funny because much like hippos they look so silly but I've heard that moose can get down right homicidal sometimes + once they get you down on the deck they'll stomp you for 15 minutes even after you are dead.
Conversely Sasquatch, if they exist, are probably more like cougars, just really shy and seldom encountered.
...Mind you, to go along with the multitude of aircraft that have been lost, to date, over 100 woodsman, prospectors, timber crusers, and various tradesman have disappeared in the BC wilderness without a trace; so who knows what happened to them...
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