On my way to New York, there was a overly “the world is against me” guy behind me. Just want you want when you’re about to go on a plane, the negative magnet who is inevitably going to self combust over the seatbelt sign being on too long. The sister/girlfriend/wife with him constantly found everything hilarious which brought him 5 seconds from having a spaz out moment on her until she said:
“Smile first, cry last”
I’ve never heard that before, but thought it was definitely something to hold on to for life.