Chemicals your parents won't mind you enjoying

I recently talked to my parents about a job application after exercising, and I think it's the first time that's happened. (The talking after exercising, not the talking or the job application or the exercising. Glad I could clear that up.)

They thought I'd had coffee, which struck me as funny. I can't drink coffee because

• caffeine has the opposite medicinal effect on me (it makes me tired, gives me headaches, and makes my jaw lock up a bit).
• it tastes of motor oil (so there's no way I'd drink decaf).

Good old endorphins are wonderful. They make you feel chipper and cheerful and tired and pleased.

Exercise: the wonder drug that's strong enough to make your 18th hour working on a government job application tolerable.

Do you have any endorphin-induced funny stories? Or stories about conversations with your parents that were unintentionally funny?