Beware of Greeks bearing gifts

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Beware of Greeks bearing gifts.

Prov. Do not trust an opponent who offers to do something nice for you. (A line from the story of the Trojan horse, as told in Vergil's Aeneid.) Jill: I can't believe Melanie brought me cookies today, when we've been fighting for weeks. Jane: Beware of Greeks bearing gifts. She probably has ulterior motives. When the rival company invited all his employees to a Christmas party, Tom's first impulse was to beware of Greeks bearing gifts, but then he upbraided himself for being paranoid.
See also: bearing, beware, gift, Greek, of