This is not to say that political choices are completely irrational.

I'm one of those guys who freezes up or does completely irrational things when he's afraid.

His mind understood, but his heart remained completely irrational on the subject.

"The system of financing emergency response is completely irrational," he said.

I don't know why I came in here; it was a completely irrational act.

That evening, when she returned to her apartment, she did something completely irrational.

Investors' recent flight from quality, as you might call it, was not completely irrational.

Why, he thought, the man's completely irrational over the incident.

It's completely irrational and it's also what your customers do every day.