Beitzah 19b-21a
b"One must utilize the unconsecrated to discharge specific sacrificial obligations \\u2022 Which offerings require Semicha, leaning one's full weight upon the sacrificial animal prior to slaughter? \\u2022 Dicey halachic tactics in the struggle between Beis Shammai and Beis Hillel \\u2022 The Etiquette of Deprecation: avoid unnecessary escalation \\u2022 Vow offerings on Yom Tov"