My mum was seeing a guy who worked for nestle once who insisted that an all chocolate kit kat was impossible. When I told him I’d had a few where the whole finger was solid choc he got really angry and started shaking. She called it off not long after that!
I don’t know about happy memories, but I once was at a festival in my younger days, and everybody was trying to buy pills but no one was selling. I was dancing to the music and suddenly had a really viid memory of being in a tree in france with my dad. I suddenly remembered everything about that tree, the climb, the bendy branch you had to put your weight on, everything. I must have been about 6 when that happened, suddenly i had what I can only describe as the most amazing high ever, I totally came up without any drugs. It was proper weird, I was just insanely happy and kept thinking up all these obscure child hood memories and woosh! I’d come up again. From that day on I never took ecstasy again, and although I’ve never managed to “come up” purely on childhood memories, one day I will manage it again!