Every country has a few outdated laws which didn't quite catch up with the times, but some of the laws in Bangkok will really leave you scratching your head as to the reason they were formulated in the first place. You might inadvertently commit a crime if you:
-Leave the house without wearing underwear
-Drive a motorized vehicle bare-chested
-Use a durian fruit as a weapon; the fine levied will be determined according to the number of thorns that strike the victim
-Step on the currency, as it contains the image of the King and must not be disrespected