Remember, girls LOVE a guy who is romantic and spontaneous.
So after a romantic dinner while you are telling her her how beautiful she is and playing with her hair, gently touch her face and then lean in as if you are about to kiss her, wait till she closes her eyes, then suddenly jump back and spray her with OC capsicin spray whilst simultaneously zapping her with your tazer, BUZZZZZZZZZzzzZZZZZZTTTTTTT!!!!