[howeyc]

Since when do people have to be 100% professional in all their dealings 24 hours everyday in order to be in the right?

[klodolph]

Maybe we could shoot for at least 25% professional?

[outworlder]

Maybe not professional at all times, but what about polite?

[brazzledazzle]

I think threatening someone with lawyers is exactly what it sounds like: a threat. This is not polite behavior even if the text was written in a polite manner.