Dts are a nightmare, they will be 4 in December, and I still have to put wrist bands on them when we go out, as one or both will run off, and obviously with 2 its much more difficult to chase them, especially when the run in opposite direction, they will hold my hands, but if I need to let go for any reason they shoot off like a rocket, so the wrist bands go back on, but they are beginning to look a bit silly at thier age wearing wrist bands.