Hi all, new here so hope this is in the right place

Just out of curiosity, has anyone ever done a reality check and concluded they were in a dream when in fact they were awake. This can't be very common but I'm guessing things like holding your nose could give a wrong answer if you were over-eager enough not to try a second test. If so - what happened?

I can't imagine mistaking reality for a dream even without RCs as everything is too coherent, but then I've never really had dreams as realistic and convincing as I've heard described on here..

Thanks!