You can just go for fitness training. You don't have to get involved with fighting. I've seen 80 year olds who take part in martial arts. You do any type of sport at your pace, not anyone others pace.
By the way for your information I used to hold a 1949 & 1968 IDP's, along with my car/motorcycle licences, plus what in the UK is a Class one heavy goods vehicle licence and have an advanced driving certificate for heavy goods vehicles. So unlike a lot of inexperienced and immature drivers, my driving experiences in countries where camels and donkeys were once the order of the day is my testament to my driving abilities.
Might be ridiculous for your train of thought. My train of thought after sixty years of driving/riding and in some countries that'd scare the shite out of most and all without ever having an accident. Maybe my force field is the thing! 😂🤣
As long as someone knows the rules about overstays, as the questionnaire asked, stating that their visa expired on the 8th and they were flying out on the ninth, the chance of an encounter with an official (police) is about as much a risk as being in a plane crash.
Well your plane might crash also. Depending on what sort of person you are, why or how could you get involved with the police. Incidentally when I lived in Udon Thani, I was stopped on a regular basis by the police on roadside checks for driving licences and at the time I had a tatty old British licence that didn't contain a photo. Not once was I ever asked for my passport and one time I was pulled up for speeding between Korat and Khon Kaen by radar. They told me I was doing 140kph and the limit is 90 kph., which to be honest I wasn't aware of. Anyway wasn't asked for either passport or driving licence. Just fined 200baht.