I once put gum on my black v3's screen because I thought it would come right off. It didn't, and I threw it away without even taking out the battery. I feel so bad now! :(
I had so many cool items and tamagotchis in the family. The infamous ball glitch made me reset and I lost all my cute little friends, points, and a 5th generation Ponytchi... I shall never buy food from the store again!!! X(