#3 was most bothersome to me, even though it had a Jew happy ending in that I didn't actually waste any food.
#1 and #2 were just run-of-the-mill situations of leaving food out too long due to forgetting to put it away, but I usually don't do this often, and twice in a week was a bit alarming.
When I thought I did it a third time, I asked myself, "What is wrong with me?" and got irritated that I wasted food THREE times in a week. I seriously had no memory of eating the corn, but instead remembered leaving it in the bag to put away for later. When I went over and saw I ate it, then the memory of eating the corn came back to me, which meant the entire thing about leaving it in the bag was a fake memory.