We were all driving to Sarah's eye appointment and I pointed out a large, furry, rolly-polly dog being walked down the street.
Sarah said, "Is that a golden retriever? They are very well behaved right?"
I replied, "Only if they are well-trained. If they are not trained they can be very dangerous. All dogs can be trained."
Matthew asked, "How do you train a dog?"
I didn't want to go into the whole thing so I just said, "From young!"
He observed, "Ya, you can't teach an old dog new tricks."