I plugged into ethernet (as wifi w/captive portal does not work for me). I think clearnet worked but I have no interest in that. Egress Tor traffic was blocked and so was VPN. I’m not interested in editing all my scripts and configs to use clearnet, so the library’s internet is useless to me (unless I bother to try a tor bridge).
I was packing my laptop and a librarian spotted me unplugging my ethernet cable and approached me with big wide open eyes and pannicked angry voice (as if to be addressing a child that did something naughty), and said “you can’t do that!”
I have a lot of reasons for favoring ethernet, like not carrying a mobile phone that can facilitate the SMS verify that the library’s captive portal imposes, not to mention I’m not eager to share my mobile number willy nilly. The reason I actually gave her was that that I run a free software based system and the wifi drivers or firmware are proprietary so my wifi card doesn’t work¹. She was also worried that I was stealing an ethernet cable and I had to explain that I carry an ethernet cable with me, which she struggled to believe for a moment. When I said it didn’t work, she was like “good, I’m not surprised”, or something like that.
¹ In reality, I have whatever proprietary garbage my wifi NIC needs, but have a principled objection to a service financed by public money forcing people to install and execute proprietary non-free software on their own hardware. But there’s little hope for getting through to a librarian in the situation at hand, whereby I might as well have been caught disassembling their PCs.
Why didn't you tell this librarian that you'd asked another librarian and they said it was okay to plug in? Why was none of this included in the original post?
The librarian who said it was okay to plugin (which they likely understood to mean plugin an A/C power cord) was young, not as senior as the edgy librarian. I’m not going to take down a kid and get them in trouble for not picking apart what it means when someone asks if they can “plug-in”.
People like Trump will throw his supporters under the bus when self-defense calls for it. I will not.
What would the point be? I didn’t need a defense. I got scolded and was walking out. Since I was calm, the librarian became calm. Police were not called and I was not detained. And if that had happened, I would have exercised my right to remain silent anyway.