Don't Do As You're Told Day!
For example, let's say your mother says, "Take the sheets off of the couch and get out of the house before your brothers get here. If your brothers find out I let you stay here with me they'll cut me off and I'll end up out on the street. You want that?"
Of course you don't want that, but you have no choice but to leave the couch covered in bedding and stay put in the house because today is Don't Do As You're Told Day. So you have to do the exact opposite of what you're told (sort of like Opposite Day, except today necessarily involves other people and what they command, whereas Opposite Day can be observed simply by telling a big fat girl that she's skinny).
It's a shame your mother didn't know what today is. Now you have to just sit tight and wait to see what happens when your brothers' bluff is called. Will the two fuckers go so far as to cut your mother off just for giving you some shelter for a week? Or will they finally sit down and let you tell your side of the story? Either way, you're not moving until somebody tells you where your son is.
Happy Don't Do As You're Told Day!