Is Pepper Spray always the best solution? A person threatening you with a lethal weapon can injure you mortally in less time than it takes you to draw and aim your pepper spray. An assailant may be able to take your canister away from you and use it against you. If this is happening, try to throw the spray away out of reach. Your pepper spray could backfire at you in wind. Both wind and rain may reduce its range and effectiveness. The best safety measure is to avoid unnecessary risks whenever possible. Avoid areas known to be dangerous, never go with pepper spray where you wouldn't go without it.