It's said that if you study to hard you will feel a pain in your stomach. It's also said that if you believe this you're a dumbass.
If you know that there's no thing something can go wrong and you take all precautionary measures, something else will go wrong.
There are three ways you can get a job done: you do it yourself, you hire someone else to do it or you tell your children not to do it.
If the first thing you do in the morning is to eat a live toad, nothing worse can happen to you that day.