The crossword solution for the term 'Bad Person to Confess Bad Things To' is RAT, which is a three-letter word. A RAT is a person who informs on another person, usually by betraying them or revealing confidential information. This term is often used to describe someone who is untrustworthy and will not keep secrets. Therefore, it is not advisable to confess bad things to a RAT as they are likely to tell others.