Multiple choice general knowledge Someone who is having a horrible day To Steal Someone's Thunder Get Up On The Wrong Side Of The Bed Back Seat Driver Can't Cut The Mustard Reveal answer Fill a bubble to check yourself B Correct answer Explanation 'Get up on the wrong side of the bed' describes someone who wakes up in a bad mood and continues to have a difficult or irritable day. The idiom suggests the person's negative state began from the very start of their day.