Sticky fingers
"Sticky fingers" refers to a person who habitually steals or acts dishonestly, particularly in matters involving money or valuables. Originating from the literal idea of fingers coated with a sticky substance making it easier to take things unnoticed, the term metaphorically implies a lack of trustworthiness and integrity. It warns others to be cautious of individuals prone to theft or unethical behavior, whether in personal relationships, business dealings, or organizational contexts.