agreed .. it should have been approached differently. But instructors are faced with a variety of things all the time ... sore jaw (clamping on the mouthpiece), ... sore muscles/pain (pulled muscle, ligament etc), ... headaches ... the list goes on. There has to be a balance here or students would be going to the doctor all the time thinking they are bent when they first start diving. The first symptoms were just being tired and when more symptoms surfaced (sorry) form his second round of diving, treatment was obtained. My only point is that this was an unusual situation and recommending that another instructor be found might be a little extreme. Also, it is interesting to note that he was a lean diver, so there would not big a large adipose nitrogen sink that "could" lead to a PFO issue. So I hope some experts can jump in so he can get back in the water.