The first time Stan gets engaged he's on a date with Wendy at this shitty Italian place to celebrate his new job, because someone on Yelp called it an "unforgettable assault of the senses."
Wendy bends down after the waitress drops off their dessert, and Stan spends two full minutes wondering just what the hell she's doing before he notices her kneeling. She reaches into her pocket and produces a small box. Stan already knows what's inside, and he can't help tearing up.
"Oh," he says quietly. "I just thought you were taking a really long time tying your shoes."