Real newbie mistake and extremely disrespectful to all Thais.
Jam-rolls are usually good guys so maybe a bit of leniency as i'm sure he won't do it again.
This guy looks young and probably has a good future ahead of him.Nice sleight of hand unfortunately didn't pay off this time.Don't let it put you off kiddo.
Border bounces are an excellent way to explore other countries for a change.
Going to the border and back in one day is like having toothache,a real pain.
Do it yourself and stay in the country a few days and treat it as a few days break.