Mully,
Did you belong to the CDFD????
A hand held Tazer is better for Co-pilot. Using pepper spray in close quarters might/will hurt her along with the assailant. The Tazer gun also requires a target standing still. Not so accurate.
Hand helds will allow you to even bear hug an assailant where you can pump the juice into his backside. Trust me, it's surefire!
Stand clear though, Tazers will cause the assailant to lose ALL bodily functions. EWWWW!