Did ya ever notice?
Did you ever notice that the only time people use the phrase "through the roof" is when they're referring to their electric or heating bills? "My heating bill this month is through the roof!", they all shout. Unless you've somehow shot something literally right through the roof of your house, there is no other time when using the phrase "through the roof" makes any sense.
And did you ever notice that the only time people use the word "uncanny" is when they say , "The resemblance is uncanny?"