It's pretty disgusting, basically robbing kids. Let us not get too precious about corruption in Thailand though, it is world wide but Thais don't hide it very well. My father worked in Covent Garden ( a huge fruit and vegetable wholesale market in London) as a salesman before he started his own business, he said the biggest cash flow in the market (hundreds of companies) was corruption money. After he started his own business dealing in the market he was personally paying out corruption money, it was impossible to do business otherwise, he was taking with the left hand and paying out with the right hand. When filling out his tax forms he said his accountants biggest worry was hiding the 'black money' my father used to pay out the corruption money. Some of his customers (one was a lord, owner of the Lyons conglomerate) wanted monthly cheques not cash, it all had to be washed for the tax office. This was 50 years ago, I doubt much has changed.