Zentangle Challenge - I Walk the Line

I can't draw a straight line! The cry of everyone who believes they cannot draw. One of the reasons I am so drawn to Zentangles is their motto "anything is possible... one stroke at a time." Anyone can draw Zentangles, for that matter, I believe anyone can draw. Drawing is a skill and that skill can be learned. In fact, as an artist, I don't believe I really ever draw a completely straight line. Even in this challenge of patterns with straight lines I waver and wobble in a most artistic manner.

I found this challenge difficult, which was a surprise for me. I have always been partial to grids, blocks, boxes, squares, straight lines. I believed that this challenge was going to be a piece of cake. And yet I was strangely at odds with my tangles. Without the ability to insert one curve I struggled to "feel" the tangle. They did not flow and move like I wished. And I tried several. So while I finally settled on one to post for this challenge, I find that I, too, can't seem to draw just a "straight" line.