take leave of your senses
US /teɪk liːv əv jʊər ˈsɛnsɪz/
UK /teɪk liːv əv jʊər ˈsɛnsɪz/

1.
失去理智, 發瘋
to start to act in a crazy or foolish way
:
•
Did you take leave of your senses when you decided to quit your job without a backup plan?
你決定在沒有備用計畫的情況下辭職,是不是瘋了?
•
He must have taken leave of his senses to drive that fast in this weather.
他一定瘋了,才會在這種天氣開那麼快。