none of this is true...in order to work.in any credible intl school in Thailand you must have a license or certificate in teaching in addition to a bachelor's degree at minimum...similarly, every credible intl school in Thailand offers psychology as a course offering and as there are so few credentialed folks in this arena it's in high demand
they can do anything ......you're the first person I've ever heard of that has first hand info regarding customs caring.....they find mine every time cuz I have several w batteries and they're large.....many many times this has happened at both suvarnabhumi and hkt and customs checks it out and puts it right back in the bag....guess I'm .lucky