Hey toddlers...this is lots of fun!
When your mom is upstairs trying to put away clothes that have been sitting in the basket for 3 days, go into the kitchen cabinets, find the plastic box filled with jars of your sister's baby food and throw the entire box down the basement stairs.
And then when she's trying to clean up the glass and food, bother your brother by continually pushing buttons on the DVD player until it goes off. And after she fixes it, do it again and again, until your dad comes out of his office upset that he can't get his work done with all the screaming and crying going on
I'm not sure if they thought it was fun, but I had a blast!