I love your idea. Such a pen would definitely come in handy.
I've also been in classes where you just see the teacher pouring out everything without being concerned if maybe we picked anything or not, some won't even talk out loud. Sometimes it's your noisy classmates. I just hope the noises and such wouldn't turn the head of our new pen invention😁.

Thanks for sharing.
💯💗💯

Also @proza, so sorry, but then I noticed you posted the link to your write-up in the sci-fi discord community (general chat), whereas it should be in the hivestudents discord prompt channel(community).
✌️