What are some good comebacks to inappropriate comments?

Looking for some good comebacks (nothing mean)?

• I have a 6 yr old, a 1 yr old and a newborn and whenever I go out, I get comments from everyone. They're usually nice comments, like "You're children are adorable", etc. Or seemingly harmless, like, "Wow, you've got your hands full!" But sometimes they're just insensitive, like "You're not having any more, are you??" When people comment about my hands being full, I happily reply, "better full than empty!" ...but that's all I got! Anyone have some good (not mean) comebacks I can use? Something that sends the message that, *gasp*, I actually love and want all three of my children. Common comments include (but are not limited to): "You sure have your hands full!" "You must be tired!" "How do you do it?"/"I could never do it!" "How do you afford it?" "Are they all yours?" "You must be busy!" "You're not having any more, are you?"

• Answer:

  I think the appropriate response is the same for all such questions: a shocked look and "Excuse me???" said in a slightly louder than average tone of voice. All the best.