You piqued my curiosity. Could you give an example of a Twitter message that you consider valuable enough that you'd actually want your phone to vibrate so you

You piqued my curiosity. Could you give an example of a Twitter message that you consider valuable enough that you'd actually want your phone to vibrate so you'd see it immediately? I don't think I've ever seen a Twitter message that I considered worth the time spent in reading it, so it always surprises me to hear about people who find them useful.