1) Lost nothing, as you backed out because they wouldn't take back the deal just because it was your turn.
2) Them being able to lot the Tongue as well, on their orbs, has nothing to do with you trying to back out of the deal just because it didn't drop on their orbs.
3) You are making assumptions again (and still) that you wouldn't have been able to lot the shank, which was nowhere in the deal you mentioned and you could've said that to counter the fact that they could still lot on the Tongue). The deal only mentioned that everyone would be able to lot the Tongue (and by extension the Shank) if one of them dropped, regardless of orb. It worked both ways, he didn't "con" you, you made a deal, made assumptions, and backed out under false reasoning AFTER the fact that they used their orbs.