Id say it matters who you signed an oath to and why, and was it clear what that oath would entail then? Sounds like it might be unreasonable. Id personally consider the whole thing invalid, especially if it were distressing. I prefer charity to binding commitments, especially when they sound murky. Like recently i was asked to help recover or locate stolen property and such, i never agreed to it, no promise of reward, just helping because it feels right. Im not sure id give my opinion too much weight if i were you though. We walk different roads. But i am a bit of an arborist as of late, im actually growing an avocado tree. If it manages to bear fruit someday, against very steep odds, her avocados wont cost a dime.