From calm and happy to reckless and regret.
I think we gamblers has this moments before where we are winning but at some point it turn around and ends up losing everything.
Having lose control of our emotion cause of a sudden lose streak.
Many gamblers seem to actually experience such moments, but then they regret it mainly because they lose.
It's not just about other people, I myself have also made the same mistake several times and in the end I regret it. Taking big risks in gambling is actually not recommended - but gamblers can sometimes make irrational decisions. I can still imagine myself doing stupid things like that before, but I have changed it and am no longer as reckless as before.