"And you can't put them on hold for a little to avoid making paths for me?"
"I might be able to do that but it'd have to be really, really important," says Bella after a moment, "and it would be hard."
"Maybe I should see if Sherlock or Tony will help," muses Bella. "...I don't know if they'd be up for it, though."
"I'm not sure I can get good data out of you," Bella says, shaking her head. "If you have that much trouble with the basic principle, then if it doesn't work for you I still have no idea if I'm on the right track for me."
"Thanks for trying, though," Bella says earnestly, "it was really nice of you."
She laughs. "Please don't try to read my mind just because we're friends."
"I don't think I will. I guess I might if I thought somebody was definitely going to try to do it for bad reasons or was going to modify my memory? Because then I'd want to really know if I could fight them off or not and better you reading me for two seconds and not wanting to learn anything too private than somebody else doing worse. But even then I probably would ask Sherlock instead because I don't want to catch fire and because he's pretty close to mindreading sometimes anyway."
"I'm gonna go flying before it gets dark," Bella decides. "Thanks again."
Bella goes flying until it gets dark, then stows Terpsichore, reads about the history of the Statute of Secrecy in the library until it's nearly curfew, and then heads back to her and Sherlock's room.
"Hi, Sherlock! So apparently Feral makes a lousy Occlumency test subject because he has really intense feelings about most everything and can't calm them down and stop painting me big glowy arrows towards his thoughts, so I don't have a good way to figure out if anything I have him trying would work for me."
Yeah, Bella's not sure she wants to outright ask on this one. If it weren't a big deal she'd be having someone try reading her directly. But: "If you ever feel like getting your mind read lemme know, but goodness knows I'll get it if you don't."
Bella flops onto her bed. "I think I'll try practicing clearing my mind anyway so I have half a chance if somebody surprises me. I guess I'm not short on other important stuff to occupy my time if I can't think of anything else to do there, though."