If I did something that leaves me open to being sued, did I necessarily break a law?
For example, if I sell 1,000 copies of a DVD with a pirated movie, it violates copyright law. I could by sued by the copyright holder. Can I be criminally prosecuted as well?
Suppose the mailman trips on my front steps because of a big crack that I, with gross negligence, failed to repair. I could be sued, but am I a criminal?
Bad example. Selling pirated movies is specifically a criminal offence, IIRC. (In the USA and many other jurisdictions, the MPAA and RIAA have lobbied to make media piracy criminal).
But, posting a youtube video of you singing Lady Gaga songs, or printing a book that quotes another book extensively may or may not be a copyright violation - the judge or jury will decide. It’s not a criminal offense. Similarly, calling someone a crook or publishing it is a civil offense you can be sued for, but is not criminal. Nor is breaking a contract and refusing to pay. (unless the result can be construed as theft, but to do so - IANAL - I suppose you have show intent to defraud when the contract was made?)
No. Ordinary negligence is generally not criminal. On the other hand, if you have committed a crime (that has an equivalent in tort law), you’ve almost certainly committed a civil wrong too.
It’s hard to imagine a scenario where failing to repair some steps constitutes gross negligence. It’s a virtual textbook example of ordinary civil negligence. Maybe if a dozen people have already been injured by them and you still did nothing.
In safety related cases, or personal injury, a breach of statutory duty ie a criminal offence, is often used as evidence in the civil case - where there is a claim for remedy