Best friends hang tough. They don't come with ‘Fragile’ stickers and are not easily scared off, or ticked off. Best friends help you out whenever they can, make time for you even when they don't have any, and trust your friendship enough to say ‘No’. Best friends are cross-your-heart-and-hope-to-die, good-times-and-bad-times, borrow-anything, tell-you-everything, trust-you-with-their-deepest-darkest-secrets, always-and-forever friends.