1. I don't really know what happens, but Kouga sees Inuyasha in human form. Kouga goes somewhere (i don't know where) and leaves his two companians by themselves. Inuyasha is human and runs into them and orders them to tell him where Kouga is (i think). Then Kouga comes out and they start to fight.
2. On another episode, Inuyasha and Kouga are fighting for a bag of chips that Kagome brought to them (i don't know if it was for Inuyasha or Kouga), and Kouga ends up eating them.
Submitted by Kirara