There are diabolical things, like the proper names that parents yearn to give their children. Here is the example of the bud of Elon Musk and Claire Grimes: X Æ A-12. X from him, is chosen by the mother. The conservatory did not accept.
On Wikipedia things are learned that were never thought of by ordinary people, such as a type of death called fatal hilarity, resulting from cardiac arrest or asphyxiation following an attack of laughter.