Quoted:
I live in a hot climate where we do not wear coats or heavy clothes. I choose to carry a small, lightweight .380 because I drop it in my pants pocket every morning and carry it everywhere. I do not even think about it unless I am going into the jail (can't carry inside the security perimeter). If I tried to carry a bigger or heavier pistol (9mm or .45), it would be in my desk or under the truck seat more than I would carry it.
For all you "mouse gun" killjoys out there, the only one who will know the difference in caliber if I pump a clip of hollow-points into a perp's nugget will be the coroner who removes them. I would rather have a "mouse gun" on my person than a .45 under the seat in the truck.
A few years ago, I had spent a few weeks putting an addition on the garage, and just about every day a mouse would come running right through the middle of where I was working. I started throwing the hammer at it, and I got kinda close a few times, but I never hit it. When I had the addition about finished, I was standing there admiring my work when I heard an odd noise. I turned toward the noise, and there was that dang mouse, sitting in the middle of my garage floor having a snack while completely ignoring me. My garage has a gravel floor, there's a nice hill on the other side of the wall, the mouse seemed to be so smug in it's belief that I couldn't hit the broad side of a barn with a hammer, and I was still carrying my Kel-tec P3AT, so...
I don't care how many people want to call it a "mouse gun", a .380 is definitely overkill for mice.