Abstract: An attack-repellent device includes a housing which can be carried like a wristwatch on the arm of the user, or attachable to a waling cane, or the user's belt or neck chain. The housing includes one or more nozzles which ejects an attack-repellent chemical under the force of a propellent fluid preferably stored in one or more canisters within the housing. The inner end of each nozzle forms a projection insertable into the discharge orifice in a canister which contains a one-way valve which normally closes the discharge orifice. A spring is provided for urging one or both of the nozzle and canister toward the other. Latching means is provided for normally separating each canister from the associated nozzle. A user-operable member is provided which could be a wall of the housing which normally covers over an entry recess through which the canister or canisters are placed within the housing.