Yep...That is the MOSO I cut down in Birmingham, AL......and yes, I have several signs around Warning folks of the Dogs AND more importantly, the Owner.....
Location: Greater Seattle, WA, area; Zone 8. Summers:mainly 60's-70's. Winters are rainy, but above freezing except for a few 15 deg F days; 1-2 days of snow max.
When I looked at your first picture, I thought you were playing a joke with a Photoshop trick. My impression was that you had two garden sheds in the background with impossibly large pieces of bamboo for sides. After several more seconds of study -- and noticing the strings holding them up -- I realized they were birdhouses in the foreground!