Click-click

Tom: Do you hear that clicking sound?
Bruce: No
Tom: Listen hard.. (Tom walks)
Bruce: Still no
Tom: My knee is clicking a bit.
Bruce: What is that container on your desk?
Tom: Animal Flex, a bodybuilder friend of mine reccomended it to me. It is supposed to really help joint lubrication.
Bruce: And since you have started taking it your knee has started to click.
Tom: Yes
Bruce: Good investment.
Tom: I also bought shares in AIG yesteday, true story.
Bruce: This post speaks for itself.