Holy cow, I bet that building dude found out how cold the water is, too! That's going to be an expensive "fence" if they cut your liner in the fall with tools, nails, etc.! I sure hope all is ok in the pond, and that the person who got wet learned his lesson. With the snow on, that guy obviously didn't maybe know the pond was there, or maybe his boss forgot to tell him? I sure hope they didn't use stakes through your liner. Wow, this remodel may get really expensive!
If I'm seeing your yard correctly, it looks like your house is in an "L" shape around the pond, is that right? And if so, then are you adding on to all of that, or is a garage part of the "L"? Would love to see pics of your house remodel, too. We are all looking for pics of construction this time of year, since most of us have snow and ice and dead stuff in our yards. LOL