Although blood may be thicker than water, water tastes better than blood.

Is the cup half-full or half-empty? Well, my cup started out full, but then it got a crack and now it's almost gone.

The government knows who took the cookie from the cookie jar, but they lied to the public about who really took the cookie. The public knows they are lying, but they don't really know who took it, so they claim Bush took the cookie from the cookie jar.