You have no gun, no spray, no weapons … and a giant grizzly bear is chasing you. Things like this don’t happen too often, so it’s always an interesting learning experience — just as long as you’re not the one experiencing it.A man named Todd Tumolo was hiking when he saw a bear from a distance. He was basically crapping his pants at this point and only had one option: to deter the approaching bear. How did he go about it? By yelling and screaming. Never back down from a bear, or you are as good as dead.