Hi Patty,

A long time ago during my summers in college I used to sell pepper spray door to door to businesses. It certainly gave me some experience with being an entrepreneur and sales.

This is just off the top of my head...and being for a business card it's gotta be short.....

"Scared Of Crime? Then Do Something About It !"

"Don't Let The Nighttime Turn Into A Nightmare. Stop Crime In Its Tracks"

"Had Enough Of Crime? Fight Back !"

"Why Be A Victim Of Violent Crime? Get Prepared"

Like I said just off the top of my head....hope that stirs up some ideas !!