I wouldn't do it.
Your vision is limited, your blaster or your dentonater might get stolen (it happened before), and most store owners feel uneasy when a guy with a helmet and a weapon enters their store...
Yes,that's the way it works! Even a girl can do it
I found some tutorials on youtube whichn helped me.
BTW: You could file the teeth a little; they're too oval; they should be more edgy.