Ohh, yes. Harmless is just the word: that's why I like it! Doesn't kill, doesn't wound, doesn't maim. But I'll tell you what it does do: It is very good at opening doors.
"It's like when you're a kid. The first time they tell you that the world's turning and you just can't quite believe it 'cause everything looks like it's standing still. I can feel it. The turn of the Earth. The ground beneath our feet is spinning at 1,000 miles an hour and the entire planet is hurtling around the sun at 67,000 miles an hour, and I can feel it." - Dr.Who