Even the best of kids have off days. Give parents a break and lend a hand.
My point is that kids are unpredictable and expecting a child of less than 2 years to sit quietly and not be inquistive in a new environment is pointless.
I see way too many women just pointing things that are wrong. "Your child said this" - "Your child did that" - take care of the situation and stop making the woman feel bad.
There's a difference between being inquisitive and being destructive. It is a parent's job to teach that to the child. I always talk to the child, and not the parent, but it's out of care for the child that I do so. It's not doing them any favors not to teach them boundaries and appropriate behaviors.