This really depends on the kind of girl you're texting it to, but it rarely is going to have a negative outcome, sometimes it can work wonders sometimes it only helps a little bit. But I would suggest playing around with it (ie splitting the texts into a few smaller ones, depends on the situation though), and if she answers with something like : "THAT was your important question?" play along with it saying that it was a life/death situation; i only realized that after i already sent it to my crush but i dont think the convo had a negative outcome, it just didn't have that much effect because i brushed it off by saying a friend sent it to me and i shocked (doesnt translate well into english).
Also this works best on more emotional girls and ones you have some kind of history with, a party/kino girl isnt going to respond to it as well as others (at least in my case).
I can encourage you guys to try this, it isn't going to hurt anyone, if a girl doesn't respond to that she probably wouldn't have responded to any other txts too.
Edit: Dafuq, i told one girl that i was leaving because i went running, and we would see each other on sunday at a party, and her response was (which i saw only 1 hour later because i really went running), :"well-behaved (um when i translate it literally it does mean that '_'), i went yesterday too

, till then

"
And I now have the feeling that she sees me as her little brother (whos around the same age as me), which is noooooooooooooooot good, any follow ups on that?