One who desecrates the Sabbath [is] with something which is punishable by kares if done intentionally and obligates a sin-offering if done inadvertently.  One who curses his father or mother is not liable unless he curses them with the Name of Hashem. [If] he cursed them with a secondary Name, R’ Meir holds [him] liable, but the Sages acquit [him].

One who cohabits with a betrothed naarah is not liable unless she is a naarah, a virgin, betrothed, and still in her father’s house. [If] two men cohabited with her, the first is stoned and the second is strangled.