@Darren *******
, IF you can't pay the overstay fine you're arrested, you're held at the IDC (Immigration Detention Center), you see a judge who waives the overstay fine and charges you between 3 and 5 thousand baht, you are then taken back to the IDC, you buy your own ticket back to your country, they take you to the airport, stamp you out, black list you for 5 years if you've overstayed up to a year and 10 years if it's longer than that, they take you to the gate, give your passport to the air marshall and you get it back when you land in your country.