When working on a schoolproject I actually managed to do loads of work in a night when I was mad drunk.

Two days later I met with the project group again at school and I remembered I did something with the project, but had not the slightest idea anymore.

My project group showed up all excited that a lot of bugs were resolvee and we finally had something really nice working in the frontend thanks to me. It was a similar feeling to waking up when your arm/hand is numb and on your face and you have no clue whats going on, at first youre scared and later it was a damn cool experience.