After going through his status screen, Bernard realized that apart from his stamina other of his attributes were now 20 points, and although he was reluctant to, he eventually decided to increase the amount of stamina he had, when he thought long and hard about it. The reason why he did this was in case there was a fight or he was outnumbered by his enemies, he wouldn't need to run if he could take care of them, even though he got energy at the same time it wasn't stamina, they were two completely different things that work differently.