The Deripaska episode epitomises what some regard as his biggest flaw: though clever, he is sometimes impetuous and a compulsive political game-player.

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As with all of us, sometimes, however, the pursuit of a clever line may stretch the truth a bit too far.

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Sometimes, though, bankruptcy plans are very clever indeed.

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Sometimes the offense cannot be smoothed over with a clever tactic.

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We sometimes make purchases that go against our best interests, because clever companies have figured out ways to nudge the wallets out of our pockets.

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