I had never heard of that particular tradition, but I would suspect that it comes from the sephardim. But thanks to you, I went into research mode trying to find an answer to your question (unsuccessfully), and I was powerfully reminded of the parallels of the Yaakov/Esav parable for our modern times (Yaakov's theft of Esav's birthright and birthright blessing through bribery, trickery and lies). Thanks again, Hannah.
U.S. Supreme Court denies Kentucky clerk request on gay marriage licenses (Reuters)
from the article: Hypocrisy in Hebron