I can put up a 6mtr x 6mtr shed, concrete the posts in, put on the roof, and fit the sliding doors, in fact doing that right now. But get a bandaid out it's wrapper, no way, after cutting all the sides with a pair of scissors and pulling and tugging for at least 2 whole minutes I gave up and handed it the bride. In 2 seconds flat, out of the wrapper and onto the finger, I just don't get it. What about those things in the kitchen that come in plastic bags ? How do they know exactly where the join is when I can't even see it with a magnifying glass ?