Maybe it's the child who finds a box of crayons and a beautiful expanse of empty wall just before that company you so want to impress is due to show up.
Maybe it's the feline who's perturbed that you enjoyed a vacation away and left the poor kitty home alone with only the twice-daily visits from a caring neighbor to dole out food and now, well, kitties do have their unique way of making a statement... (sigh) right on your luggage.
Or maybe it's the car that wouldn't start causing you to miss that important business interview, you know, the one that held the promise of a promotion.
There are also plenty of great outcomes that were born from plans that went awry like the career choice that never came to fruition because of "budget cuts" and the alternate fall back that led to meeting that special person and a lifetime of joy.
I once listened to someone tell us of his five-year plan which he had scheduled down to the day and it just didn't work out that way. Despite the plan being trashed, today he's a happy family man with a house, loving wife, impressive offspring and a job he enjoys.
Life may not be the plans you thought you wanted, you may be dealt very different opportunities. Sometimes your perfect dinner plan now includes a mural by Crayola, sometimes the washer and dryer need to run all night so that you can be prepared for work the next day. And sometimes you feel like you've been blindsided and may never catch your breath again — but you do.
Have you ever heard of the Paperbag Players? These talented improvisation actors take a paperbag filled with random items and perform a skit based on the contents and nothing else. This is a good example of how we need to live our lives using the items at hand.
Never throw your hands up in surrender because of all the things that "went wrong", instead just grab it all and make it work. Be flexible, be productive, and be happy.