OHHHH yukkk.....so much for my comments about how clean the site was! I suppose they cant wipe their feet before entering but then again they shouldnt wipe them on the frame!
Heres a story for you - nearly twenty years ago when we built our first dream home! some one used our storage room as a toilet and left a number two!!! I was so shocked and annoyed especially having to clean it up!! SOOOOOOOOOO although your build is messy at least no one has done a number 2 on it yet!