nothing can be done legally. it's akin to giving money away and then saying you regretted it. no black and white.

as to the illegal ways to obtain the money.. that leave to your imagination.

as to the thing you can do to help feel better:
1. treat to a pre-purchased spa package
2. treat to a short local holiday
3. buy a big big indoor neon sign with "I told you so" and place it at the living room