I’ve gotten pretty drunk before, but never enough to not remember what happened. Do people forget that much? I assume that they do given the general acceptance of that kind of story beat
It happens, but usually not as dramatic. Last time I've lost most of the evening was back in my early 20s - I only remember like 30 seconds between 6pm and morning. Usually someone else pouring you drinks in a consistent, but not fast enough to knock you out, pace is needed :)
I occasionally lose track of a few hours every few years, but I think I just fall asleep most of those times.
That only ever happened to me twice in my lifetime. Luckily, I have exacly two tattoos to remind me. -_-