Physics makes it into wedding speech
My daughter got married yesterday to a former student of mine, Gustav. Josie was also in my physics class, but not the same one as Gustav. They first met in the climbing room rather than the classroom. The guests included a fair number of former students so it seemed appropriate to refresh their physics knowledge. My, father of the bride speech was basically funny stories about how Josie is lucky to be alive with a father who has a warped sense of danger. Here's the physics bit.
There are some dubious assumptions in this calculation but the result is about right.