.....there is always the pussibility of giving a hobbyist -young or old- a heart attack....not to be rude but if he was to die, he will be going wayyyy happyyyy lol....
* first give him one Aspirin (unless allergic)
* ask if he has nitro (nitroglycerine) with him, (if they have angina they carry it with them)
* then grrrll !! call 911....btw this is when your get dressed and try to dress your guy
(remove bondage ropes, gadgets or straps on - he will be taken to the ER, lol)
* if unresponsive start CPR- (DATY will NOT work here..lol)
* then you need to explain the paramedics the "event" that triggered the symptoms, don't worry they have heard it all, ask for discretion, if this hobbyist is a regular, as a courtesy send him flowers to the hospital with a cute note..... and..."don't worry be happy"