"His mane is," Rex confirms unhelpfully. Indrik is pretty aggressive most of the time, partially because he's highly territorial and Rex's vicinity is his territory. But also Indrik's desire to protect Rex and their connection combines to mean Rex's paranoia incites it. A potential threat in Rex's eyes is an enemy in Indrik's. And there no one, no one in the world at all, that Rex does not consider a potential threat.

That said, he may equally react to Rex's desire to pat Reira on the head. Who knows?

"He is also useful as a footstool when I want to put my feet up."