When I was exploring yesterday, I spotted a guy with a guitar, selling trinkets on a pedestrian bridge.
It had been a while since I had played guitar, so I went to buy some beers today after a bit more exploring, and offered a beer for the opportunity to play.
As he didn't speak English, and I didn't speak Thai, we managed to get by using hand gestures, and I started playing.
After a minute or so, the guy put is hat out in front of me, and people started filling it with money!
As it had not been my intention to earn money, I let the guy keep it, and he passed the money on to a homeless person who was using the bridge as shelter.