i sight and captured a snorlax. and tried to go the same place again, but cannot find it anymore. is it an account can only catch 1 rare per certain period of time?

what if my fren go there, he'll get 1 also or no more since i already captured 1 ?

yeah i did all gym in 30min coz got few near by my house
and i did it early morning around 6am-7am so still no ppl awake yet, more easy to def the gym.
i found one gym at remote area its lvl 10 now and im on tier 6/7, a week ady still hvnt kick out yet haha so daily will get 10 coin for sure.

today i did 11 gym but by the time i wanna collect i loss one gym so end up 10 only