This happened to me last night but a little differently, I got a little confused I counted my fingers repeatedly getting more than 5 a hand, I double checked with a nose RC like I usually do plugged my nose and tried to breath in but couldn't breath. It was almost like it was coming from my memory of the many failed nose RC's from RL just playing out.

I have also counted 5 fingers in the passed a few times that's why I never EVER just do it once usually 3, to at times 4 or 5 and always look away then look back, even a eye movement away.

I agree with many people saying expect it to work, its not full proof but that will help lots. The digital watch from my personal experience has had the best result, cause its so hard for your brain to replicate something complex completely when you look away and look back expecting a different outcome, when that part of the brain is not fully active.