Responsa for Chullin 266:6

בשרא קא זבין

If you wish, however, I can say, a gentile [partner] usually makes himself heard.<span class="x" onmousemove="('comment',' The circumstances were, as suggested at first, that the gentile was sitting by the butcher's stall, and so too in the case of the priest. But there is this distinction: a gentile partner would not look on in silence but would interfere in the business done by his Jewish partner, protesting from time to time at the price his partner allows, so that it would be obvious to all that the gentile has a share in the business. This, however, is not the case with a priest who is a partner in the business.');">⁴</span>

Shut min haShamayim