Children often repeat what we say, which is why we must be careful what we say.  Bad behaviour is often copied by children too.  Little ears are listening and little eyes are constantly watching.

My son and his ex-partner were sitting on the sofa with their three year old son between them.  They were talking about moving house and what was going to happen.  They had a few disagreements and a little voice piped up "Why are we having this conversation?"  

Ha, ha!