Both boys are very small for their age (you were a late bloomer yourself), and both are full of mischief and very hyper active.
You usually try to be fairly lax and understanding about chores, but you also only tolerate so much. You generally tell the boys something needs done, but you try to give them some leeway in when it has to be done.
This week, your spouse told them Tuesday night that they needed to do a few things to their bedroom and bathroom, and was very specific about what needed to be done. Wednesday, you reminded them. Thursday, when the chores still hadn't been done, you warned them they weren't going to get to keep their weekend plans, if they didn't get things done. You divided the chores and assigned them, to help the boys get going.
When you checked, not long before bedtime, the bathroom was done. Your spouse told you the boys said they'd done the bedroom, and it looked fine as far as s/he could tell.
You and your spouse both start work later in the morning, so the boys go home with a friend of yours, who keeps them until you get off. Friday night, he's taking his kids, yours, and some others to see a new movie they're all talking about.
When you get back from dropping the boys at school, your spouse is furious. Instead of doing the room like they'd been told, they just stuffed a lot of junk in drawers, and only cleaned what could be seen from the door.
Considering how many days the boys took to do it, and that they lied when they said they'd done what they were told, this is definitely a spanking offense. However, there are a couple of problems.
Because of your work schedule, you won't be able to pick the boys up until they were already at the theater. Would that last minute pull be more punishment (and more resentment) than it's worth? Of course, you could ask your friend to tell the boys they're not allowed to go, but he's not much on playing executioner (when he doesn't get to give the spankings). Or will you wait until they get home from the movie or some other time to handle the problem?