I also didn't understand why Buffy was so disrespectful to the men responsible for her power, but the whole thing is confusing to me. Apparently the baseline of her powers comes from demon parts, but she didn't want additional demonic power? Give me a break! It's not like she's crossing a line or anything. The original powers haven't corrupted her, so why not get a little magical steroids as long as she's swinging by Africa? She just seemed belligerent and unfocused when she was there. At the very least, her position didn't seem very well articulated. I guess these men were involved in the torture of the first slayer in Africa, but Buffy still has no compunctions about freely using the power that resulted from that woman's suffering. She seems to be on shakey moral ground. In general, though, I do like the Slayer myth. It's very exciting, and even glamorous. I just don't like Buffy's response to it.