No reasons could ever be good reasons and no I will never understand. Not only that, but to ask me to keep this quiet? You really don't know me well enough, do you? I've already owled both Montague and uncle Don about this. Hopefully one of them can beat some sense into you make you see sense.
And you do know that by entering a battle you're making yourself quite wellknown to the entire Auror office, don't you? Keeping this under any hat is far too late to think of.