A: No good deed goes unpunished, right? The world of parenting is just like the rest of the world -- not everyone is thoughtful and considerate. All you can do is calmly state your suggestions. Perhaps try something like this: "I'm sorry but the original carpool just doesn't have room for an additional child." If the other moms decide to work out their own carpool without you, that will be a disappointment -- but perhaps it's just as well for your child not to be in that situation. Next time, you'll be able to draw on this experience to make sure everyone has a fair share of responsibility -- from the beginning.