the best idea I've had all day

I think I need a way to attach an airhorn to an email, so that when the recipient opens the email, it goes FRAAAAAAAMPH! at them. And does it again every time they open any other email they get afterward, if they haven't replied to my email yet. That's what I need. (And it shouldn't matter whether or not their computer has speakers.)

When a lot of the things you need to do are dependent on the arrival of email containing information which will allow you to do them, you get impatient like that.