A proverb advising to avoid situations that invite suspicion (literally: don't put your shoes on in a melon field).
上司と二人きりで食事するのは避けた。瓜田に履を納れずという考えだ。
I avoided dining alone with my boss — following the idea of avoiding compromising situations.
お金を扱う仕事では、瓜田に履を納れず、透明性を保つことが大切だ。
In jobs handling money, it's important to keep transparency and avoid compromising situations.