Can you tell about a time when you were really frightened?

It\'s been about 7 years since my son went to emergency center because he had high fever. He had an collapsed experience when the fever reached over 40 Celsius. I just considered his problem as a symptom that he had before. I didn\'t think ask help from the rescue team because it didn\'t look like serious problem. However, his symptom was getting worse as time went on. I realized that it was not light disease that I could handle. I asked 911 team to help, and then 911 team took my my son to the hospital to get a proper treatment at the Emergency Room. If I were late to call 911, my would have serious problem.