Take the idiom “Curiosity killed the cat” into service.
Said to warn someone not to ask too many questions about something. Being curious can get you into trouble. Often used to warn someone against prying into other’s affairs.
“Jill: Where did you get all that money?
Jane: Curiosity killed the cat.”
Warn someone not to ask too many questions about something
“Why are you going away so suddenly?’
‘Curiosity killed the cat.”