stock replenishing supervisor

my tom is so funny sometimes, i just have to tell you what he was doing today.
we were in next and somebody had taken alot of the baby shoes off the racks and tried them on, but had left them all over the seats instead of putting them back.
Tom saw them and started tidying the shoes up, hanging them back on the rack and saying "uh oh" every time he turned round and saw the mess. it was really funny cos i say the same thing when he tips boxes of toys out on the floor, so he was making the connection to there being a mess and me saying "uh oh"
He has been doing this alot lately, copying things i do and say, like hoovering the floor and tutting when he drops something. however I'm not impressed with the bad language he is picking up from us, even though its not directed at him and often said in another room he is still picking it up and making noises that certainly sound the same when he is angry with me. so we are quickly learning that he is no longer to young to be influenced by what we say and do, and will be watching our behaviour whether it be saying thank you more often, or saying certain words less often!