A number of times in the past, characters with... notorious reputations... have made such statements, sometimes more than once. A few times they have been kept, but most have not.
i hope you will go against the norm, and keep your promise... though I must say that most do not expect you to.
Well, most of the people I know, anyway.
Caled

Penned by my hand on the 18th of Valnuary, in the year 245 AF.