You might have seen news about this knee brace. It's not for protection, though that is probably a possibility. This one actually generates power, helping to recharge small electronics. Gives new meaning to the "talk all day" cell phone if you have one of these.
The knee brace also gives a twist to an old saying. The knee brace version: He walks the walk, so he can talk the talk....:hehe:
webrunner
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A SQL query walks into a bar and sees two tables. He walks up to them and asks, "Can I join you?"
Ref.: http://tkyte.blogspot.com/2009/02/sql-joke.html