Hullin 2: Everyone Can Shecht, Except for Those Who Should Not

An introduction to Hullin, including the meaning of the term and the likely original title of the tractate. Also, details of how to manage ritual slaughter (for any kind of slaughter, including non-consecrated meat). And the first mishnah! Everyone is eligible to do this slaughtering -- except for the usual 3 (deaf-mute, cognitively impaired, or a minor). Though, if they did it, and under supervision, and the slaughtering is done correctly, then it would be kosher too, at least after the fact. But does "everybody" always mean this distinction between the ideal situation and after the fact? With parallels to elsewhere in the halakhah that disprove that idea.