I've prmoted this line before, but never mind!

From "The Bonny Birdy" (Child ballad )

Then he's darked her window up secure
Wi' muckle sugar stane

(Ray Fisher's Version)

Or a somewhat more recent verse, from Andy Irvine I think:

Yes, reading you letters, conviction did grow
I thought it a chance, and I knew I must go
It's hard to believe I could be so naive
Sabra Girl - flattered but to deceive