Be careful
Be careful
The law may say one thing; be interpreted in another; there is the letter of the law; the spirit of the law; yada yada yada.
If someone wants to sue you, whether they have a case or not, then you have to be prepared. Their lawyer will send a letter. You'll have to get a lawyer to send a letter. The bills will add up. It will take up your time. You may lose alot of sleep.
It's a case of how much justice you can afford. Who you offend.
How much money they have and how forcefully they feel offended etc and are willing to spend on it.
This is how lawyers make a living. They have a way of finding a way to make a case - they get paid to do this.
A very wise person once said something like: if this EVER happens to you then swallow all pride and send a polite letter with an apology. Get in your car, train, airplane and go knock on their door and apologise, reason it out. DO WHATEVER SO THAT LAWYERS DO NOT GET INVOLVED.
In summary, stay away from this minefield.