That is the coolest thing ever ................some of the best friendships I have ever had were with my training partners .[ something about going through the pain and sweat with one another on a reg basis ......and the mutual encouragement that goes hand and hand with that builds a strong relationship ] I cant imagine how cool it would have been to train with my father , your son is a lucky young man. [ and wow , what a teacher ....damm if he gets past wanting too much too soon, he should be amazing with alittle time ] I admire you for taking the time to spend with your child , I can promise you at 15 he needs you more than ever .........these will be times that he never forgets ......they will shape him as a man ......just be patient , make it fun , and build up his self esteam as much as possible ..........get ready for you relationship to grow leaps and bounds and be taken to a whole new level [ you will now be his friend , hero , father , and partner ] My hat is off to you Mr Zona .......like have said before .......you are damm good bber , but a even better man ......................Good for you and son bro !!!