After we harvested the crop of mushrooms in March, I put the kit in a back room with a ziplock bag dropped on top to hold in moisture. I had fully intended to deliberately go for another crop. Life went to hell and I forgot all about it.
A couple of weeks ago back in May, I was rooting around in the room where I had put the mushroom kit and noticed the ziplock bag was tented somewhat. I lifted it and found a second crop of mushrooms had tried to grow without any help at all from me. Because of the ziplock bag the carbon dioxide levels were too high and half the mushrooms were dead already. The others I sprayed down with water, shrugged my shoulders because they were so sad, and walked away. Two days later I was smiling.