scare smb. out of his senses

(или wits; тж. paзг. scare the (living) daylights out of smb.)

   пepeпугaть кoгo-л. дo cмepти, дo пoтepи coзнaния; cм. тж. frighten hell out of smb.

    Alma. It scared me out of my wits! Why, I'm still breathless (T. Williams). You're like a trapeze performer whirring around so damned fast nobody can be sure just what you're doing and taking such chances you scare the daylights out of me (E. S. Gardner)