As a teenager I (Chris) had a joke book with 2000 gags from Australian lounge comic, Marty Fields. One of them I remember now and then was 'I'm not much of a gym goer, my motto is, no pain, no pain'.

I guess I just share this anecdote as a reminder to be vigilant about the material you leave lying around your children - they too may grow up to shun physical exercise and think it's normal to communicate via 90s lounge gags.