The key factor is whether the agent is a member of the Association of Authors' Representatives, which screens its members and requires them to uphold a Canon of Ethics. ↗
Getting ahead in a difficult profession requires avid faith in yourself. That is why some people with mediocre talent, but with great inner drive, go so much further than people with vastly superior talent. ↗
Any time I need to be really physical, and a role requires that, you're kind of viscerally activated by being that physical in it. It takes away the thought process, which is fun. ↗
But above that, most mature adults can hold their attention on something for 45 minutes, whether they like it or not. But above that requires training. ↗