Mr. Y responds
Your new mailbox looks great. You must have been exhausted from laying about in the shade watching your A install it. You know what they say about a dog's work never being done and all.
I must, however, respectfully deny your claim for compensation. Among other legal and factual reasons, you are what is known in the law as an "officious intermeddler." Being of the genus canis, that is probably not a term you are familiar with, so let me provide you with an explanation. According to Black's Law Dictionary, an "officious intermeddler" is one "who confers a benefit on another without being requested or having a legal duty to do so, and who therefore has no legal grounds to demand restitution for the benefit conferred." Moreover, I doubt that, even with the aid of expert testimony, you would be able to prove that you actually conferred any benefit whatsoever. Thus, consider your claim for compensation denied.
I certainly hope this does not change what I consider to be an otherwise healthy and respectful relationship (and I will continue to overlook your barking).
P.S. As always, nothing contained herein shall be construed as a waiver of any rights and defenses, all of which are expressly reserved.