My wife and I were cruising on I-15 and got behind some big rigs on a hill. One of the rigs was going about 40 mph in the fast lane while passing a couple of even slower ones. He finally got around them and moved over. I hesitated to make sure the next semi saw me and wasn't going to also move over to pass the slower one. I down shifted and accelerated to about 85 mph. It was a double trailer rig. I was at the front wheels of the second trailer when he moved over on top of me. We happened to have just entered a bridge with no shoulder so there was no place for me to go. I got as close to the guardrail as possible and stood on the brakes. The ABS kicked in and those big Brembos grabbed hold like there was no tomorrow. Before we knew it we were out of danger. I don't think the big rig ever saw us. What can I say, these brakes are awesome!