"Question on Gym Etiquette"

#PokemonGO: How long do you wait before taking an open gym slot that someone else opened?Context: So there's this gym in my city that's consistently lvl 10 (it's attached to some apartments and I assume there are a few players living there maintaining it). I saw it get bumped down to 48k, so I rushed over to boost it up and claim a slot. As I was walking over (it's about 3 blocks away), I saw someone boosting it up, and by the time I got there, it was at 49.9k. I know there are people actively managing the gym, and I've heard a few reports on here that people will prestige a gym till almost the next level so that players have to earn their spot, so I waited about 2 minutes, saw that no one was starting another battle, so I brought the gym to lvl 10 and placed my (second) highest CP poke (my highest is currently in another gym).The issue is, there's no way to tell if I just effectively sniped a spot from a fellow teammate, or if players maintaining the gym were just managing it for a player to come by and claim a spot. What do you think?EDIT: Thanks for the responses; most players seem to be saying that, unless there's someone playing nearby that you can ask (I didn't see anyone), if you wait a few minutes and see no activity, you're probably good to go. via /r/TheSilphRoad http://ift.tt/2dqBdlX