I hear people complain all the time about only being able to get 50 coins a day even if they get kicked out of 20 gyms that day. First off, I'm just glad Niantic gives us that, they don't have to do that.
Given that scenario, what if when the first pokemon is kicked out it gives the 50 coins. Then each additional one kicked acts like a pokestop spin and gives items? If gold gym, more items, etc. Just a simple idea for Niantic to consider.