I think the point to be made is - Thai police can really get serious, (aka imaginative) if they want to: fine them 20k for being a public nuisance; or, the old ''what's this joint I found in your possession'' trick. anything to stick them in the slammer, in order to force the parents to cough up the penalty. after all, the law is ''bad out good in'' . 99% of tourists, together with us retirees, live here peacefully and contribute to society. Just get rid of these bums.