Give the other person a break. Maybe he or she is not good at teaching, or it might be a gross oversimplification to explain things in a single sentence or a paragraph. Find me a "bible of text" that did not strive to be informative, and I may agree with you then.
As for being annoying: there is a biblical quote along the lines of "first the log, and then the speck" (Luke 6:42) that you would do well to read. You are free to chastise others about being annoying when you cease to be that yourself:
It's unremarkable that you would actually cuss out people who take their time to sit down and help you thoroughly, and if they help you privately you turn into an impatient dick.