A brilliant new study on parachute use was recently published in the British Journal of Medicine. The researchers/authors presumably will go on to enjoy long careers as expert witnesses in lawsuits involving injuries related to sky-diving. The study is open access and online; it is titled: Parachute use to prevent death and major trauma when jumping from aircraft: randomized controlled trial
BMJ 2018; 363 doi: https://doi.org/10.1136/bmj.k5094 (Published 13 December 2018)
Cite this as: BMJ 2018;363:k5094

The authors included the following notable disclosure:

“RWY had the original idea but was reluctant to say it out loud for years. In a moment of weakness, he shared it with MWY and BKN, both of whom immediately recognized this as the best idea RWY will ever have. RWY and LRV wrote the first draft. CS, DBK, JBS, EAS, and JLH provided critical review. RMD provided subject matter expertise. DSK took this work to another satirical level. All authors suffered substantial abdominal discomfort from laughter. RWY worried that BKN would not keep his mouth shut until the Christmas issue was published.”

Set out below is an image of a twitter post from one of the authors.