go berserk

People who cannot separate themselves from the reality around them go berserk when that reality turns and bites.

Any moment now, they might go berserk, turning their course fatally toward the Sun.

If there is anything to stir the blood of a man like a destroyer beginning to see red and go Berserk, I have yet to encounter it.

Anyhow, the way things were going, we'd all go berserk before we reached Saturn.

Take away their fracases and their trank pills and they'd go berserk.