From Keith Ammann:

When a recent double bombing at an abortion clinic occurred, I was
reminded of something about bombs: Bombs ALWAYS “rock”
their targets. Of the three daily papers in our metro area, ALL THREE
had some variation of “Two bombs rock abortion clinic.”
Two ran the AP story, which used the word “rock” in the
lead, while one ran the Washington Post story, which also used the
word “rock” in the lead. And the night before, on the local
news, the anchor woman said that bombers had “hit” an abortion
clinic -then BACKED UP and CORRECTED herself, using the word “rocked”
instead.

The thing is, you never actually see a building rocking back and
forth after being bombed. Usually it just sits there, with a big hole
in it.