my only one time i had to use my baton was about 4 years ago, when i had my first baton - 16inch, (i now carry the 21 inch after the first one got stolen).
one night, I walking thru the city with two other mates, we walked past a bunch of 5 people going the other way. They were holding beer bottles, and were quite intoxicated at the time. as soon as they passed, they thought they would pick on us by abusing us verbally.
We ignored them, not wanting any trouble. anyway, they started to follow us, still calling names. suddenly, my mate was pulled away and two of these guys started laying into him. my other friend wanted to run away, but i couldn't leave my friend there. I jumped in front of the other 3, asking them to leave him alone. these other 3 started mocking me, making hand gestures and noises like Bruce Lee. I took out my baton, and flicked it out, hoping to deter them. They still made fun of me saying "oooh, he's got a baton!"
Meanwhile, the other two were still kicking and hitting my mate, so I turned to one of them, and hit him with the baton twice on the arm. As soon as i turned back to the other 3, and one was really close. I remembered in the instruction manual not to hit anyone in the head or neck, but i was desperate, and swung the baton around and hit the guy in across the neck.
I told my friend to run, and we ran down the road as they threw their bottles at us.
It's definitely a night to remember, and my mate thinks i saved his life.
thankfully, I haven't had the need to use it again.
that's my experience with the baton. and i never leave home without it.