Or at least stay off it. I wouldn't have thought that I needed to make a studio run about models or photographers standing on the curve of a cyclorama wall. The curve is the weakest point of the cyclorama and the most difficult to repair. I learned this as an assistant at the very first studio I ever worked at. I just assumed that everyone knew this, but in the last week I have had two photographers direct models on to the curve of my cyclorama including one on a rental that was having a model run across the studio and jump using the curve as the landing point. Lucky she didn't put her foot through the luan and twist her ankle.

Time to put a neon sign "Don't stand here, stand there. Don't jump here--Jump over there."

i always put a tape line off to either side, and inform the subject to stay in front of that point.

When not shooting, cordon off the cyc with light stands and rope/tape.

When someone brings in a little kid to the studio, drop everything and tell the parent/guardian and kid that the cyc is off limits.  Otherwise, that kid will immediately run up and down the curve (or, even worse, skateboard up and down the curve).