Scare (one) silly phrase
If you "scare (one) silly", you make someone very frightened.
Don't shout like that! You've scared me silly.
The horror film scared me silly many times.
I was scared silly when the light went out.
The verb "scare" should be conjugated according to its tense.
This expression alludes to frightening one so severely as to cause them to lose their mind.
Try to avoid to change something because doing something else could make things worse
I could have changed my answer, but I decided to leave well enough alone.