In light of the other comments, let me clarify a bit. 1. Aviate, navigate, communicate, in that order. When clear of the runway and stopped, then you can chat with the controller. 2. If you go around at a controlled airport, you really should tell the tower what you are doing as soon as it is safe to do so. 3. Yes, you own the runway, but if you are doing something other than what you were cleared to do with that runway, you should tell the tower. As a matter of courtesy, all of these apply at non-towered airports too. I repeat, there is no excuse for rude or unprofessional behavior from the tower. You know, it is all recorded -- if you ever wanted to make an issue of the unprofessionalism.
The WHAT is the important part -- so he can give appropriate instructions to other traffic. E.g., someone else might be on final approach that now must go around. WHY could be important (a sinkhole just opened up at the departure end of the runway; wandering buffalo; use your imagination.) if not, then it can wait...probably until you want another take-off clearance, anyway.