Still got a 6 D cell Kel-Lite: the original "Mace-With-A-Light" rescue tool. A couple swings and you can pull him out of the car through the window. It's semi retired as no parts are available.
Back in the 70's I was doing my internship at Adult Parole and Probation in Reno. Anyway, for some reason when I made a home visit, I'd invariably hear someone's toilet flushing. Well, Dan'l Boone had his "Old Betsy", and I had my "Old Ex-Lax". Bet I could have bought a new car with the money flushed down the drain.
Mag Lite may have had the C cell baton light, I can't remember. 6 C cells or even 5 works for me.
Course now I have a FRN covered piece of galvanized pipe that I carry as a cane. Do a Google search for Mendowood Canes. Strolled into the hospital leaning on it, and nobody batted an eye. Hell, nobody noticed the bulge in my front pocket for that matter, so I guess the holster kept it from printing.