not a badly behaved child, but a child in restaurants...
when daughter was tiny we regularly took her out for meals in restaurants and hotels. in a quiet dining room, she would walk around to talk to other diners. they were delighted by her - if not, she did not disturb them. she was small, clean, charming, polite and articulate. on one occasion she engaged in a lengthy conversation with a family she had not met before. they asked her age, so she had to come back to ask me 'mummy, how old am i?' i gave her the answer. 'you are thirteen months; one year and one month old'.
conversation. in her own right. with strangers. she'd been a 'conversational' baby, too.
we would have taken a dim view of crawling under tables! baby would have had to sit with me and not be allowed to free range at all!