Everybody should learn three things - how to do compression-only CPR* , the heimlich maneuver, and the International sign for "I am choking" (hands crossed in front of throat, face turning blue).
stay safe.
*Staying Alive http://www.youtube.com/watch?v=I_izvAbhExY may be the only good thing to come out of disco - a steady 100 beats per minute. It may drive you crazy singing it to yourself but it sure does help to know when to press down hard.
See, depending on if you're an optimist or a pessimist, there are a couple of song options.
Optimists may go with "Stayin' Alive".
Pessimists go with "Another one bites the dust".
Yep, we're a morbid bunch.... :)