We moved to our new house in 2008 and the router sitting in the box for a couple days somehow forgot part of its settings but still worked enough that our computers connected and worked so I didn't notice until one day I found others connected to it.
I turned on logging and noticed they were looking at political sites. So rather than cut them off I put in dns redirects and pointed the R candidates site to the D candidates site and the D candidates site to the NRA