If the host you’re connecting to is already in your known_hosts, a malicious network can’t do anything but break the connection. If it tries to mitm the ssh connection, you’ll get the alert that’s someone could be “doing something nasty”.

Information leakage: Anything between you and the ssh server will be able to see that you’re connecting to a ssh server and how much data you transfer, but not what the data actually is.

Portal. I’ve played through it enough times that I can complete it in a little under 20 minutes. I’m not very good at games but there are a lot of fun and easy tricks to run through it quickly. Playing it a bunch of times is relaxing and fun for me.