I used to be a bit of a brat—just bound on in to somebody's office (for instance) and ask for what I needed. I didn't intentionally do this to be rude, I just didn't think about how the interruption would effect them. Well, now that I'm older and wiser I'm here to tell you it WAS rude. So now, I email them to make an appt. and I try to be mindful. Ooops... I know, I'm being preachy. Sorry!