I don't recall a bomb threat at my school, but we had an unexpected visitor as a result of it happening at another....
It happened a few years ago, around Christmas time. The Prime Minister had planned to come to my city to speak at a local high school, which wasn't the one I went to. However, there was a bomb threat in that school the day before he was to arrive. So his plans changed slightly, and he ended up coming to my high school! :D
I can imagine my principal's face that day....Um, sir, the Prime Minister is not going to that other school. He's coming here....this afternoon!
PS-I can joke about this because the bomb threat was fake. XD