I went to a coffee shop that had Wi-Fi this morning and they gave me the network name and password. In the top-right corner of my desktop there is the Wi-Fi menu, and I selected it to "Turn Wi-Fi On" It searched for a few seconds and correctly found their network.
I then tried to connect to it, but botched/fat-fingered the password and pressed Enter ⏎ by mistake. I then wasted about 20 mins trying to find a way to change the (bad) password that my Mac was using to authenticate with. I gave up and came home.
So I ask: How do you change the password for a Wi-Fi network?