I met a fella 2 years ago who was about 4 or 5 months overstay had no money but wanted to go home I took him immigration they said u gotta go police station went there they arrested him court next morning 1000 baht fine overstay then jail until he could get money for ticket home after a month in jail German consulate come down to Phuket paid his ticket and also the cost of 2 officers to escort him to airport from phuket to Germany lucky u could go from phukett otherwise the officer would escort u to Bangkok