S&W Model 64-4, circa 1994, and Greco Whisper, circa 2002.
The above is known teasingly as my "cookie recipe gun." The name came about from me saying "Of course there's a gun in arm's reach when I'm in bed. I assume if I wake up to find a strange person in my bedroom, he ain't there to swap cookie recipes."
Thus, the reasons for the 2" K-frame:
1) It'll likely be used at contact distances, and can't be pushed out of battery like an auto.
2) It'll likely be used at contact distances, and only has a 2" barrel for the assailant to grab, while I have a full K-frame grip in my hand.
3) It'll likely be used at contact distances, and is made of steel so it can be used to beat someone to a paste if the six shots don't do the trick.
So, yeah, a little thought went into picking out a firearm for that particular task. And, for what it's worth, the only cookie recipes I know involve slicing the dough into circles of regular thickness...