Tell her, but tell her it is staying abroad for emergency. I would assume you have other assets there also. treat them the same. You can and should enjoy your money in a wise manner. She will indirectly benefit from it. Unless this changes your "status" it should not change things. What I mean is, if 17 million Baht takes you out of the poorhouse, then that is different. If you were never in the poorhouse, then nothing changes. It is nice, but not that much money. It can be gone in no time at all. (I am not recommending that but it is easy to piss away "found money.")
Enjoy your life. You never know how long you have!
PS: My Mother's cow is sick and it needs an operation. Can I "borrow" 1 million Baht for the operation????
