"Iorek Byrnison: Can is not the same as must. Lyra Silvertongue: But if you must and you can, then there's no excuse."

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"Which is completely out-of-line behavior. Then you are wholly within your rights to stomp on their foot." "No," Delia said, over her shoulder. "Actually, you're not. Just excuse yourself as politely as possible, and get out of arm's reach." Kristy looked at me, shaking her head. "Stomp them." she said, under her breath. "Really."

— Sarah Dessen