There was a guy on TV the other night saying "Make no mistake", bla bla bla. Something about the enemy coming to burn our fields and sell our children into slavery. But what he was saying was fairly contentious, not an assertion of some fact. You can only say "make no mistake" if it's something like how many volts are going through something, and what will happen if you put your tongue on it. What he meant was more like "Whatever you do, just don't disagree with me, because I know I'm right, I just do." He looked like he would make a big scene if anyone said anything. So the other people just sat there embarrassed.