Even in nations that have more experience with legally recognized same-sex pairing and splitting, calculation of divorce rates is often hampered by small numbers.

WSJ: Gay Divorce Rate Proves Hard to Measure

But Waldrum and his colleagues carried out a theoretical calculation of the risk of loss of life due to lightning in a similar building frequented by large numbers of people, in a similar setting - assuming the lack of any lightning protection.

BBC: What is the chance of lightning striking St Peter's?