So guess what I found behind the dryer? Yeah. A big hole. There was once a time when things shocked me, but that time has passed. It really makes dealing with things much easier. This huge void goes so far beyond the standard size required for venting and completely explains the evidence of vermin we were seeing. But, horror and chagrin aside, it did give a full view of the plumbing situation. And as you can see, we have a variety of electrical and pipe, one of which looks like it was picked up at a rummage sale at the Hoover Dam. You can also see one of the many random pilot holes (lower left) that perforated the wall. I am not sure if the goal that inspired the holes was ever achieved, but they were humorously plugged with paper towels and old newspaper. It is situations like these that you thank your GC heartily when you discover he always buys extra dry wall and mud.