It was a nice day in Santa Cruz until the cell phone rang announcing that one of my coffee shop wireless customers has a malfunctional wireless router. I asked them to "reset the router" by pulling the plug, waiting a while, and plugging it back in. When that didn't work, I drove over to see what was happening.
For the 2nd time in as many weeks, the router appeared to have been reset to the default settings. I reloaded the saved settings, changed the password in case it had been leaked, and interrogated all the employees. Eventually, I found the culprit. To this person, "reset the router" means punch the reset button. He did, and for a long enough hold time to clear all the settings to defaults. To insure maximum damage, the DSL modem has also been reset to defaults, which required putting it back into the bridging mode.
I put some electrical tape over the reset button hole. That should slow them down, a little, maybe.