What the Panera "barista" says when she hands you a latte with no lid on it: "I'll just pass you the lid. This way you can enjoy the beauty of the latte."
What she means: "I put too much whipped cream on this latte, and I won't be able to put the lid on without making a huge mess and spilling all over the place. I'll let it be your problem."
Honestly. "The beauty of the latte?!" Yes, for $3.59 it had better be beautiful. But don't think I'm snowed by all that. I'm happy if it tastes good (and doesn't make a mess.)