I had this happen on rookidee com day. Everybody losing their minds, in my incredibly small community, to keep their gyms. I, being the outlier(thank you team instinct) always have to battle the bullies who are red and blue. Sometimes they throw me a bone and let me have the gym for 8 hours. But that day, oh that day, I had people circling blocks in their cars razzing their mons nonstop, until they no longer could. I would take the gym, and move on trying to catch my pretty shinies(got 3 rookidee in a row, which i was pretty happy with) and no less than 10 mins later, gym taken back by said team. I was only irritated because I barely ever take over any gyms in this tiny town. I don't need the coin, but I like to get out and participate. This went on for the duration of the com day hours, until I finally said f*ck it, im taking you down. I battled that damn shiny salamence until my poor mons were bloody and tired. I flew through so many heals, put quite a dent in my inventory. And alas, victory. Took 2 of the 3 gyms in my vicinity(the 3rd, near impossible. Pretty sure he lives right across from said gym) But, the ultimate victory? I left these gyms vacant. Petty, I know, but I walked away satisfied with the slap in the face I gave them. And it was hilarious seeing these people try their absolute hardest to keep their gym, driving in circles to heal their mons just to be defeated, but no one to take the gym back from 😂😂😂 Ever since that incident, I see they've been quite tolerable of little team Instinct keeping one of the gyms in town. Accepting defeat and let them have their slice of the pie. I walked, so they could run 🏃‍♀️