Like the above dude said, get some construction fence. Obviously it doesn't have to be orange, just saying because I don't know if you're a moron or not. Go to Lowe's, Home Depot, etc and get the astroturf that they have there. It's made for backyard patios and stuff like that but I've been using it forever and it's worked perfectly. Just put soap/water on the inrun and you'll be golden. I don't know if I'm rambling or not, sorry, I'm drunk.
"If you're getting rad, and there's no one there to see it, are you REALLY getting rad?"