You would set that up in the shipping terms. Also, you might want to use vague words when describing kids. For example, don't say "little terrors," but do say "remarkable conduct;" after all, you could easily remark on their conduct all day long, just not with positive remarks. Also, don't say "they turn my hair grey," say instead "they remind me of my youth," since you used to look younger before they showed up. And "they've destroyed my home" is a bit harsh... try this: "they bring light into the home" since they knocked down that wall after putting your car into gear while you were unloading groceries. It's the subtle language that makes the purchase attractive and in no way false advertisement... lawyers understand.
hagen