"The sermon was so long, that after an hour of it we went away."
Good English pragmatism. Many lesser people would say to themselves, "Having stayed so long, I may as well stay for the rest." Not our Sam. He's a Bayesian updater and infers from the way the sermon went in the first 60 minutes, chances are it would continue like that for another 60, 90 or 120 minutes.
We also note the absence of regret: he gave the man a chance, he saw that nothing good came from it, and he moved on. Very mature. Our Sam would make a good equity investor.