You might find this a little disturbing, more than a third of college-aged men are using condoms incorrectly. That is according to a study at Indiana University where researchers interviewed 158 guys who had used a condom in the previous three months. Forty percent reported not leaving room at the tip, which is a risk factor for breakage. Worse yet, 43% said they forgot to put it on until after intercourse had begun, and another 15% said they took it off before they were finished. Researchers say the bottom line is, read the directions because a condom offers no protection at all if you use it wrong.