I've personally seen the "FBI surveillance" (with various mis-spellings) and "BuyYourOwn"
I set up WiFi at a customer's with "TorrentElsewhereScumbagFY"
(which just fit in the 25characters allowed) after they got a "nastygram"
from their ISP that someone had been downloading movies.
To say the customer LOVED it would be a monumental understatement.
I've seen see weird ones "FunkyGiraffe".
Some risque ones "EdiblePanties" (Actually kinda gross)
One that made me laugh till it hurt "UsingTheWholeChicken"
because it's part of the punchline to a joke: "what's the difference between
"sensual" and "Kinky"? Answer: "Sensual is using a feather, Kinky is
using the whole chicken". Unfortunatly I didn't check to see if "Kinky" was the password.
as a practice I ALWAYS change the WiFi name on any Router.
Though I often change it to the default name of a router made by a different company.
That way someone hacking in will waste time attempting to use the other brand's default passwords. and most often use too few characters.
Like for my neighbor he installed a whole house alarm system.
I talked him into a dirty trick... we replaced the signs the alarm
company provided with the signs and labels from a competetors alarm system.
There is nothing more amusing than watching someone try to hack something
that isn't what it appears to be.