Eloise, my sister, had been struggling with plugging in her laptop charger into the wall plug thingy for several minutes. All the while, I laughed. Finally she says: "You try. It’s my turn to laugh."
I take her charger, get down on my knees on very uncomfortable carpet (which had only been adding to my sister’s misery and my laughing minutes before) and plug it in. I stand up, and go: "Look at that: I’m still the one laughing," and laugh.
She laughed that laugh, the kind of laugh you laugh when you’ve been trying to do something for ages only to have someone else do it in less than 10 seconds. 🙂