The rope idea might work with adults but here you have super mom not paying any attention, probably got a cell phone stuck in her ear talking to super grandma, and not observing while little 22 month old varmit crawls under ropes. Then he grabs trains before anyone can stop him. Oh yes, be sure you don't touch the little fart trying to stop him or super daddy will sue you for child abuse. These parents now days may be smart enough to have them but they sure lack skills in raising them. Marty Hall