Kallen's usual demeanor settled back into place as soon as Menelaus was gone.
Acting exaggeratedly disoriented, goofy and compliant, had been his best bet... at least the moment, for not dying.
It kept him underestimated, bought him time, and let him gather information as possible about his situation.
There were other approaches he could have taken, but most were either too risky or wouldn't have given him the same advantage. One particularly reckless option would have been revealing that he was a Crimson.
That would have been a terrible idea.
The attack on his family estate hadn't been by humans, but by other races... at the very least, those three he had killed weren't humans, so it was safe to assume the others weren't humans too.
Although he didn't kill an orc amongst them, that did not mean the Orcs did not also have a hand in it.
And if the Orcs were involved, even tangentially, claiming his lineage could get him killed.
