My 13-y-o son has become a "House" addict and, therefore, an expert. Whenever a patient starts groaning or clutching his/her stomach, I always turn to my son and say eagerly, "Do you think s/he is gonna vomit blood?" My son invariably rolls his eyes and tells me, "Mom, on 'House,' no one ever
vomits blood when there is some kind of warning [stomach pain, etc.], and no one ever vomits ...