If a woman on a flying broom asks to give the baby a gift, say no and don't let her inside. Her gift ideas are terrible.
Never live near anyone who teaches swordfighting.
If a man in a pointy had declares your child is the chosen one, deny it and do not let him or a gift from him anywhere near the child. Your home town will last longer.
If your child begins showing signs of wild uncontrollable powers, you are doomed. Take out life insurance.
If your child talks about having seen an angel with any magnitude of conviction, get your affairs in order immediately, it may already be too late.