Harry shot Ron a frown, and shrugged. "As a person, no. But. . . yeah, I think he's on our side. I don't know why, but he is."
He frowned, not following for a moment, and then catching on as Ron went on. "He might tip them away, too. Give us some extra time and space. We could maybe try it - tell him, and McGonagall, and let them decide how to get the word out and what to do, we'll just tell McGonagall HOW we're getting in, and leave that bit out to Snape." Not that Snape had been that pleased about Harry asking for help last time, according to McGonagall. Harry couldn't care less about keeping the git happy, though.