
Go off the rails
Unexpected Behavior
Refers to someone acting unusually or erratically, against social norms.

She usually follows rules, but she went off the rails after being fired.
Emotional Implication
Often implies a person is dealing with emotional distress or issues.

His emotions went off the rails during the intense debate.
Negative Outcome
Used to suggest that someone's behavior will lead to negative consequences.

Without professional help, he's likely to go off the rails.
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