Pascal made mention of this in a post back below, and it’s a kind of an interesting idea.

You’re in the middle lane. You want to be in the left lane. You turn on your left turn signal. The guy in that lane, where you have room to be, accelerates to prevent your entry.

Now, with Pascal’s plan, you turn on your turn signal, and the guy behind you in the adjacent lane gets an egg in the face- IF he accelerates rather than letting you in. If he backs off, he’s fine. If he maintains station, he’s fine. If he accelerates, blammo.

Now, Pascal is a nice guy. Too nice for his own good, in fact. I used to think paintballs were the answer. These days, I think the only balls I want to send towards rude drivers are minie.