I know someone who moved from the east coast to western Canada for a job. Some time later, talking to his son's kindergarten teacher, she asked 'So, what part of Nova Scotia are you from?'. He replied, and, not having a distinctive regional accent, asked why she would ask. She said 'well, from time to time when kids get hurt or things don't go well they can use some colourful language... I think today was the first time I've heard a 4 year old use the phrase "lord thundering Jesus".'
I was once in a store standing by a counter with a 30-ish woman holding her 3 or 4 year old son, who said "Mom, your hair is brown.... brown and grey." I'm sure she was thrilled her son pointed out the couple grey hairs that he was probably the cause of in the first place.