- Look, that's the girl I used to be madly in love with!
- Are you going to go talk to her?
- Probably not a good idea—let sleeping dogs lie.
What does "let sleeping dogs lie" mean?
Don't wake up a sleeping dog, or it might bite.
Some people are better off being ignored.
It's best to leave things as they are.
Reconnect with old friends whenever possible.
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