["I'm furious, I was almost killed by a semi-truck because he just randomly merged into my lane without looking!", "That's terrible. Was anyone hurt?", "No, luckily I swerved into the outer-most lane and there wasn't a car there. Thank God!"]
You're lucky. That could have been really bad. Did he stop?
I was driving down the highway and a semi-truck doesn't even look and just merges into my lane.  I had to swerve over and luckily there wasn't a car there.