Shabbat 154: Why Rabban Gamliel's Donkey Died

(Again with audio issues - it's all here, but you'll hear the separate recordings we did...) Who's Who: Rav Mari bar Rahel. How one can be not obligated to bring a korban chatat for a case of shogeg, and yet be obligated s'kilah (stoning) when intentional? And how does intent with regard to idolatry teach about intent with regard to the rest of Torah? Plus: A prime example of Gemara logic to explain why the s'kilah doesn't take place in the end. And why lashes aren't exacted either. Also: The donkey of Rabban Gamliel - where he didn't want to unload the animal until motzash, but then the donkey died! Why did he delay, when this daf explicitly teaches the halakhah that he could have?! What about "tza'ar ba'alei chayim," treating animals humanely? Two rabbinic precepts come into conflict - which is to take precedence?