At work, I try to disarm colleagues by saying I only need to ask them a quick question, but they've since discovered that it's never a quick one, and often the kind of question with multiple parts. I'm quite relentless in hounding people to give me what I need (as long as it's reasonable), and often they give in because it's much more tiresome to say no to me, and I'm so oblivious that it's no use snubbing me.