Be NICE, even when you are stressed. Everyone talks. Don't fall victim to the "blocking" culture that pervades academic training. If someone calls you with an asinine consult - I mean real boneheaded, idiotic, subhuman - you ask the question "how can I help you," write a note, and move on. It's hardest to do this when you are busy. The people around you are the ones you will depend on for consults, referrals, etc. when you enter practice. If you burn bridges, word spreads and you will find yourself stranded on an island of your own hubris.