I read about this in the “watercooler” section of my local news website. It cracked me up! Every now and then things like this make me remember why I put the Einstein quote in my sig.
Eh? I’m not sure how that lesson applies here. I’d probably tell her, “If life hands you lemons, don’t squeeze them in everyone’s eyes, or people will get pissed at you.”
EDIT: Oh. The lemonade one. That would make sense.