I have a funny story about chasing a bear outta' our campsite in the middle of the night on a Rocky Mountain backpacking trip back in the early '80's.
I've probably told this story before, but, here goes...
It was the middle of the night, and, at one point, I was slightly awakened by something that I thought "sproinged" one of my tent ropes. Nothing more, so started heading back to Slumberland.
Next thing I know, one of the guys is yelling "Wake up! We got a bear in camp!"
I quickly threw on (didn't even bother to lace the boots) my wool socks and hiking boots, grabbed my flashlight, and ran outside.
The bear was up in one of the trees I had hung our bear bag between that evening.
Next thing I know, everyone is turned around looking at me and giggling...and it was a co-ed group...at that moment, I realized I had taken the time to at least put on my socks and boots, but, beyond that was helping come to the rescue in just my tighty whities...!!!

We finally chased the bear outta' the tree and camp, and laughed even more for a long time after that...!