How would/do you set up your strobes to shoot toddlers?

Most of my sessions involve babies and toddlers. Obviously, they don't like to sit still longer than about, oh, three seconds. I put them on a table for some shots, but most often just on the floor. I can't quite figure out how to set up my strobes (one AB800 and one AB400 and one cheapo one off of Ebay that I sometimes use on the backdrop) the best way to keep lighting fairly consistent even if they move around on the backdrop. Where would you position the lights if you were in this situation? Is it possible, or just wishful thinking?

You can't position strobes so that the subject can run around all over the place and the exposure stay the same. When I setup a shoot, I have tape all over the place on the floor, because moving a strobe, stool, etc, even a couple of inches will change the exposure. One trick that I've seen used is to use chains or strings to measure stops of light as you move in and out... that at least would allow you to make a quick adjustment without getting your meter out. And obviously, you can just use your meter to measure each strobe before each shot. If you are envisioning setting up a bunch of strobes for a portrait and tnen fire away as the kids run around, I don't think that will work.