you know the old joke about how to tell Grizzly scatt from black bear scatt... black bear is full of berry seeds and smells sweet. Grizzly has little brass bells in it and has the distinct smell of hot peppers.
Some Self Defense OC spray is stronger anyway. Bear Spray is regulated by the EPA as an insecticide so is limited to 2 percent or less. Self Defense spray isn't regulated that way and something like Fox Labs OC spray is 4 percent.