My right knee has been giving me some pain, so I got a brace for it, just like the one for my left knee. I haven't tried them both on at the same time though.
When I was strapping on the knee brace, I stood up, and Dan, the guy from durable medical equipment, who ordered the brace for me, said "What was that?"
I said, "That was my knee creaking." Every time I got up, my knees creaked. It was funny to me, but he looked at me like, Can you believe how loud your knees are?"