Joss fell asleep during his training which he was told to not sleep for 2 days. It is part of his training not to eat or sleep.
Abraham is going to kill me!
Abraham told Joss he failed his training but the only way to get him back to train was to get whipped 10 times. Abraham made Joss feel like he was responsible for Malek's death.
You said you'd do whatever it takes. Well, this is what it takes. Either you face the whip, or you walk away from your training.
I'll do whatever it takes.
Kat, Sirus's daughter, knew Joss was lying about being attacked by a mountain lion. He had to keep the slayer society in secrecy so he only told her he was beaten by a man. She knew right away, Abraham was the reason behind it.
So are you going to tell me what really happened to you, or should I go on pretending that you lost to a mountain lion in a slap fight?
I got in a fight with one of the other...guys...and lost.