> Speeding up upon overtaking doesn't count. If you need to do that you should not have overtaken in the first place, since it was obviously dangerous.

No matter how fast a truck is driving, I don't want to be anywhere near it while driving my motorcycle. Those tires randomly explode (I've seen it happen multiple times) and when a piece hits you, you're dead. I pass them ASAP, no matter how fast I have to go to do it.