(Mishnah): One may not act lightheadedly [when facing the eastern gate...].

(Beraisa): One who urinates, he turns his face to the north. One who moves his bowels, he turns his face to the south. (CHAREDIM - he may not face east or west, lest he expose himself facing the Shechinah in the west. One may not expose his backside to the south, which is the 'right' of the world.)

(R. Yosi bei R. Bun): The Beraisa discusses one who is from Tzofim (a place from which Har ha'Bayis can be seen) and inside (closer).

R. Akiva says, [it is forbidden] in every place (even in Chutz la'Aretz), but only if there is no wall there (between him and the Mikdash).

(Beraisa): One who moves his bowels, he may not turn his face to the east and his back to the west, rather, to the sides (north or south. This is unlike the previous Beraisa, which forbids facing north.)

R. Yehudah says, this is at a time while the Mikdash stands.

R. Yosi says, it is from Tzofim and inside.

R. Akiva says, it is in every place, but only if there is no wall there.

R. Akiva: I entered after R. Yehoshua [to the privy] to see [how he does] the act.

They asked him, what did you see? He said, I saw him sit, and his side was to the west (he faced north or south). He did not uncover himself until he sat. He did not sit until he cleaned (the area where he would sit - HA'GAON RAV C. KANIEVSKY, SHLITA). He did not clean [his anus] with the right hand, rather, with the left.

Also Shimon Ben Azai said so - I entered after R. Akiva to see the act. They asked him, what did you see? ...

(Beraisa): One may not enter Har ha'Bayis with his shoe, or dust on his feet, or his coins wrapped in his cloth, or his moneybelt on him outside (his garment).

What is the source [regarding duist]? "Shemor Raglecha Ka'asher Telech El Beis Elokim"?

R. Yosi bar Yehudah says "va'Yavo Ad Lifnei Sha'ar ha'Melech Ki Ein Lavo El Sha'ar ha'Melech bi'Levush Sak;

If in front of [a mortal king, who comes from] a putrid [drop of semen], it is so (one may not wear sackcloth, even though it is not repulsive), all the more so in front of Hash-m's gate [one may not spit - SEDEI YEHOSHUA].

(Mishnah): One may not use Har ha'Bayis as a shortcut. Spitting [is forbidden] from a Kal v'Chomer.

Wearing shoes, which is honorable (to cover the foot), you say that it is forbidden. Spitting, which is disgraceful, all the more so!