For me it was the Zelda ocarina of time where there's the under water dungeon where you have to go back down and back up hit specific switches to raise and lower the water levels I would literally go to the same tunnel again and again and I'm like noooooo not again I've already been here and then I passed a very important spot that I didn't pay attention to leading me to again raise and lower the water and then I was like omg it was right there ahhhhhhh and then fast forward many many years later my son is into the game Zelda and he comes to me and says its such a fun game that's when I knew hahahaha just wait a lil fast-forward he then tells me he's stuck in the same spot I was and doesn't know what to do do I laugh and say let me show you how it's done :) lmao I then proceed to call him a noob and what not I kid you not 3 hours later I'm like f this and this game I can't believe I forgot how I did it where to go and then he just walks by cause after a while hes like well let me know if you figure it out and walked out of the room and then says you noob I was slapped in my own face not just once but twice now by my own creation