I am really trying to train my students to ask questions, not make statements and stare, blankly, waiting for me to take care of all of their problems.
I have found that "What would you like me to do about that?" said in a nice tone works with them.
Example: today, a student came up to me and announced, clutching her earlobe, "My ear hurts." I am thinking, "I bet it is, since you are digging into it with your fingernails," but I say, "What would you like me to do about that?" She stared at me for a moment, then went and sat down.
Earlier in the day, though, a littler one came up to me with her earring in her hand. "My earring fell out," she said. "What do we need to do about that?" I said. She thought, then said, "Can you help me put my earring back in?" Voila! A request! It worked?
With older, ruder, more entitled students, I have been known to pull out the "And this affects me how?" if the demand/statement is used too often, but I try to not be so snarky, really...I just believe that 16 years old is old enough to say, "May I go to the nurse?" instead of, "Miss, I got my period..." in a whiny tone...