Chilindrina goes barefoot:part one

In the end of the episode "playing firefighters",we see chilindrina barefoot. In the episode "the wisher of the well",she takes off her shoes while she holds her socks in her hand,and in "la chilindrina en apuros",she takes off one sock,but doesn't take off the other. Why is that? Does she have a freaky foot fetish that we don't know?