Yes, he is worried. The problem with this lie is that Cougar is sometimes willing to let Jake get away with this, but right now is not one of those times. Especially not when it seems like it matters this much to him. Squeezing Jake's shoulder one last time before he lets go, Cougar gives him a wary look as he wonders if he's really been that bad in the past.

"It's your dog. It showed up with your name, yes?" he points out, giving Jake a sharp look. "¿Por qué siempre tan tranquilo cuando más importa?"