Defensive children's pythons

[regi375]

About a month ago I acquired two papercuts with faces. In this short time that I've owned them I've been tagged more than I have in the past year of snake keeping. From what I've read about them I thought Children's Pythons were supposed to be pretty chill. I don't know if I have been misinformed or if they just hate me. Their enclosure has a hot spot of 90 and 75 on the cool end.
If this is just a fluke though, and I did decide to breed them, would their offspring have a high chance of being just as defensive as the parents? Also could some internal issue cause this behaviour? I got them at a reptile show so I don't know.