Sergie was not pleased and was very annoyed when he found out that someone was knocking loudly on his door. His response can be rational and can also be irrational depending on which point of view. If it is the point of view of Sergie, his reaction is rational because he could have slept more, rested well and enjoyed his privacy rather than entertaining a kid who is just asking questions around the neighborhood. However, in a different point of view, it is irrational because it would not kill to answer a few questions from a kid who has gone round and round in filming the scenario. It would not hurt if he only had shared a couple of his thoughts to the kid.
What you can infer the most from Herbert's character after the squire confrontation
is his lingering naivety, but also his ability to be resourceful.
And after the whole situation felt off, he manifested capable of pride,
but one of the most important traits noticeable was the establishment of his determination.
Spiders are powerless should a rock fall on them.
I hope this helps!