So a lot of this is going to be difficult to answer as it depends on the work culture and individual personalities of coworkers.
- Fidgeting is generally fine as long as it’s not noisy fidgeting. If it’s something like pen clicking, that is more likely to bother someone. Passing depends on the layout. If there is decent space you should be fine, but if it pushes you really close to other people it may make people uncomfortable.
- People will almost certainly see your screen, whether they care what is on it is pretty dependent. If them seeing it makes you uncomfortable, some offices allow the addition of privacy screens which may help and is worth asking about if it will improve your quality of life.
- Some places make a big deal of always looking like you’re on task while others just care about output.
- Downtime is pretty much the same as the previous answer. Depends on your management and work culture. Might be an easier sell if your reading somehow relates to your work.
- People will be able to hear, but talking is generally acceptable at a reasonable volume. Just be considerate of those around you and don’t distract people if they are busy. Along this same lines, you’ll also hear other people’s conversations. That’s why I wear my loop earplugs age have headphones for music. Helps me focus when I need to.
- I did not disclose my ADHD, but also didn’t request any accommodations since I can have my earplugs and headphones which is really the only thing I needed. I’d love to have an office so I could close people out when I was especially busy, but that doesn’t really fall under reasonable accommodations.
So, if you get a trainer you get to enjoy the fidgeting without risks of cuts. And most butterfly knives are single edged so one of the handles is relatively safe. I have one largely for the fidgeting aspect.