I found this fellow in my kitchen today.  I tried to catch it for release outside my property but could not.  Best I could do was scare it out the window so it is now in my garden.  Should I be worried about that?

Golden Tree Snake.

 

Fast (as you've found out), beautiful, harmless.

 

https://www.thailandsnakes.com/venomous/rear-fanged/golden-tree-snake-mildly-venomous-not-very-dangerous/

 

 

Good for you, PattayaPete.           No reason to kill something that you don't know anything about.   

 

I'd only  suggest error on the part of caution and not try to handle  it with proper knowledge.

You have a friend in your garden now.