idioms

frame of mind (emotional state, mood) She returned home in a happier frame of mind. Let’s discuss this when you’re in the right frame of mind. envocabulary.com

do you mind (used to ask someone’s permission) Do you mind if I close the window? Do you mind looking after my kids when I’m out for a while?   envocabulary.com

cross your mind (come to your mind) It never crossed my mind to lock the door. Did the thought that you might someday need this old jam jar cross your mind?   envocabulary.com

  cat burglar (a thief who gets into buildings by climbing through upper windows, skylights, etc.) A cat burglar has climbed up the drainpipe and stolen her valuables. Samuel is a heavy sleeper, like most old people, and didn’t hear the cat burglar entering. envocabulary.com

cat and mouse game (a constant pursuit, near captures, and repeated escapes) I don’t want to hide here; I’ll call the police and put an end to this cat and mouse game. I’m not sure if they are not playing cat and mouse with me. envocabulary.com