My three year old son has been toilet trained for over a year with no problems at all and in the last week he has suddenly started pooing around the house, at nursery, in the garden and in the swimming baths. Husband and I are absolutely mortified cant understand why this is happening he knows he has done wrong. We have told him this is very naughty and praised him for using the toilet when he does. He seems to do when he is with other people and finds it funny until he sees how annoyed we get with it. Has anyone experienced this? what should we do?