Today, it happened unexpectedly. Al, age 90, fell off the exercycle next to me at the YMCA. He had lost consciousness and I caught him as he fell. A quick evaluation that he was breathing and I went into action, directing multiple people to call 911 and others to lay him down on the floor. The 5-6 minutes it took for the paramedics to arrive seemed like a half hour. I gave the paramedics a detailed description of what Al had been doing and what I observed. Apparently, he had done this before. I knew what to do because I am periodically retaking first aid and CPR classes. I knew the lady on the third exercycle. She commented that she froze up because she didn't know what to do. Don't be that kind of person! Take the classes. The person you save may be a family member.