Yaakov told Rachel that " וַיַּגֵּד יַעֲקֹב לְרָחֵל כִּי אֲחִי אָבִיהָ הוּא וְכִי בֶן רִבְקָה הוּא וַתָּרָץ וַתַּגֵּד לְאָבִיהָ:"
And Jacob told Rachel that he was her father's kinsman and that he was Rebecca's son, and she ran and told her father.
כי אחי אביה הוא: קרוב לאביה, כמו (לעיל יג ח) אנשים אחים אנחנו. ומדרשו אם לרמאות הוא בא גם אני אחיו ברמאות, ואם אדם כשר הוא, גם אני בן רבקה אחותו הכשרה: that he was her father’s kinsman: Heb. אִחִי אָבִיהָ, lit., her father’s brother. Related to her father, as (above 13:8):“we are kinsmen (אַחִים)” (Pirkei d’Rabbi Eliezer , ch. 36). Its midrashic interpretation is: If he (Laban) comes to deceive me, I, too, am his brother in deception, and if he is an honest man, I, too, am the son of his honest sister Rebecca. [from Gen. Rabbah 70:13] (emphasis mine)
How was Yaakov Lavan's brother? There were two cases of trickery:
- Rochel and Leah - Yaakov got tricked. True, he had a good counter-plan, but not good enough to avoid either marrying Leah or embarrassing her.
- His wages - If not for a miracle, Yaakov would have gotten nothing. Doesn't seem like a good plan. Moreover, he doesn't even arrange a wage from before. He knows he's dealing with a liar (he was already tricked with Rochel and Leah by this point). Especially the Torah says that if one doesn't set a wage he has the lower side of the bargaining table (Yado al hatachtona). Doesn't seem to be so cunning.
How does this Medrash work? What did Yaakov trick Lavan with, or what trickery did he use to avoid Lavan's tricks?