That children will definitely mistreat animals if they have a toy animal of any kind that is not in an enclosure of an acceptable size.
You must only buy your child 4 presents - want, need, wear, read - otherwise they will definitely be terribly spoilt. Furthermore, if these are from Father Christmas then you are an awful person destroying the lives' of others.
Putting your Christmas decorations up before about 15th December means you will, for some reason, end up dusting said decorations.
Never move outside of London as there is nothing to do and you will be bored.