Hey , Joe ! Where have you been these past few days ?   I ’ Ve been busy with a first aid course that I started about a week ago at the Red Cross .   Cool ! I ’ Ve always wanted to do something like that ! Have you learned anything useful ?   For sure ! I mean we ’ Ve learned how to apply pressure to stop bleeding , how to check for a pulse , and even how to apply CPR !   Have you treated any real emergencies ?   Well , they took us along with some paramedics . There was this guy who fell off his motorcycle and suffered a concussion as well as a couple of compound fractures . His wounds were pretty serious so they had to rush him to the hospital . It was intense ! 