I just bought some rope from Walmart last night to make a new one lol. I decided to try the Poly___ (can't remember the rest of the name ha.) since it is rot resistant, plastic-y so if she pees on it I can wash/dry it easy with the hose, 50ft, and bright colored. They some in the camping section and in the clothes line/clothes pin section. I had one out of a clothes line material (cotton?) and it snagged on EVERYTHING. That is the main reason I picked out this one.
So far I like it, but it was hard to get my knots to stay... they kept slipping but I got it to work. I haven't really had it long enough to test it thoroughly.
It would deff burn your hands, but I always just step on long lines anyways. I step down lightly at first, letting the rope slide under my shoe just enough to slow her down but I don't let her hit the end of the line at full speed. Well, if it were an emergency I would...