I have been bitten by Canadian Geese several times at a popular waterfowl feeding spot at a nearby river (yes, I know feeding them is not ideal). It really isn't that bad, not much worse than a duck bite. They really excel at appearing threatening
They are totally fearless. I remember my dad was driving his 1974 Impala past a park and 2 geese game running up in front of the car and hissed at us. This was a big ass 70s land boat of a car, and the geese had no qualms about making us stop.