瓜田李下

Explanation: Metaphor easily lead to situations of suspected 　　Usage: Joint type; as subject, attribute; with melon suspected of Li 　　Source: Gan Bao Jin "Immortals," No. 15: "fear of ridicule by the allay." 　　Examples: If he done nothing wrong, that is, ~ have nothing to worry about. Thesaurus:  the suspicion of being in the melon field and under the plum tree