Lucy and Oscar walk into a small, exclusive art supply shop. ? Oscar! You're back again. Remember, the limit is still three items per customer. ? You always say that! These paints are perfect for my new masterpiece, and I need at least ten colors. ? Just pick what you need, and let's go. I'm hungry. ? Art has no limits! How can you put a limit on art supplies? ? Sorry, Oscar. Three items. Same rule as always. ? This is the most beautiful shop in the city! Surely you can make one small exception for a real artist? ? Thanks for the kind words, but no. ? Oscar, stop. Pick three colors, and let's go. ? Fine. Lucy, you're a customer too. Buy three items for me, and then I'll have six. ? OK, I'll buy three items. But they'll...