They dumb things down and in the process make it hard for people who actually like to have control of the environment.

In the heat of battle, you can do some dumb things.

Soon as the words were out, he knew it was a dumb thing to say.

And I think it's cause you done some real dumb things.

You've known me too long to think a dumb thing like that.

You do some dumb things that don't work out at all.

I mean, that seems sort of a dumb thing to say.

Sure, people say dumb things all the time, and when given the opportunity to take them back, do just that.

Of course, at a time like this that would be a dumb thing to do.

A dumb thing to say, but it came out before I had a chance to think.