My spotted pythons surprises me sometimes. He was scared of me when I first got him and he'd go the other direction if he smelled my skin. Now he doesn't even care and we've gotten used to eachother.
He also was fed in the cage before I got him. It took him one or two feedings to realise what the feeding bin was for and sometimes he'll actually sit up and almost beg for food when he's in it and I just lower it into his mouth. Then again sometimes he strikes at me when he senses the heat from my hand or face lol
If I have him out wandering the room, he'll get a several feet away from me and sit still for several minutes just looking at me. When he thinks I'm not paying attention anymore he darts away. Pretty interesting if you ask me.