Years ago I worked at a company where one of the first paragraphs in the contract was that you have to pay a 4 digit sum if you didn't show up on the first day. (The company was small with solid funding but had actually a massive churn)

OTOH I experienced the reverse. Shady offers where red flags kept popping up after accepting the 1st interview round. E.g. the (ext.) recruiter lying about the funding or the company revealing shortly before signing the contract that the runway is just half a year. Not surprising that some applicants aren't 100% truthful either...