I was in our schools computer service team and they trusted the (competent) students way too much. I never misused those credentials but thinking about it now I could have done some hilarious stuff… Anyway. Even without too many permissions I did a thing or two to the computers. I once realised no computer had the BIOS password set. So I set one on a library computer to reserve it for me. Another time i realised you could take the whole network down if you connected two LAN ports directly with each other. That one was more on accident.
So when my last phone was nearing death i finally made the decision to get myself a Fairphone. Plan is to save money in the long run by just replacing parts as they break not the whole device. Plus it’s one of the only phones out there with a replaceable battery. The modular design makes it quite bulky but I actually like that as well.