Do Not Disturb

set phrase Used especially on signs to indicate that someone inside a room does not want to be interrupted or disturbed. I want to sleep in late tomorrow, so let's put the "Do Not Disturb" sign on our door. The psychologist has a "Do Not Disturb" sign up outside her office, so she must be with a client right now. Take the "Do Not Disturb" sign off the door so housekeeping will clean our hotel room while we're out.

I find your lack of (something) disturbing

Used to humorously call into question some quality that one finds lacking in someone else. Based on the phrase "I find your lack of faith disturbing," from the 1977 film Star Wars. All your art and writing is based on Star Wars? I find your lack of originality disturbing. If you really think that asinine plan will work, I find your lack of brain cells disturbing. I find your lack of creativity disturbing, Officer. These are known terrorists—they will do anything to carry out their plots.