Long minutes:
Teenager: "I'll clean my room in a minute."
Nurse: "The doctor will be with you in a minute."
Boring person : "Have you got a minute?"
Doctor: "This will only hurt for a minute."
Short Minutes:
Mother: "Come here this minute, Charles Ignatius Jones." (It's using the three names that gets them.)
Then there are the minutes which change length depending on who is saying : "Be with you in a minute." or "Back in a minute." (gave up on PC for those two!)
wow