Shabbat 103: A Chicken without Its Head May Run Around, But Then It Surely Dies

A closing general note that emerges from the discussion on the previous daf. And: plowing, etc. In any amount incurs a korban -- because it is inevitable that all of these cases are beneficial to the the land and its growth potential. Which means it doesn't matter if you intend to enhance the land - you're doing it anyway. Inevitability removes the excuse of "unintentional" melakhah. [What's What: Psik Reisheih] And then what matters is how beneficial it is to you, how much do you care about the benefit? Also: Writing. Ever put together a sukkah and indicate what goes where with symbols? That was writing in the Mishkan. The typical writing was presumed to be right-handend. What about a lefty? The Gemara addresses this directly (also ambidextrous). And what about those marks vs. writing 2 letters?