lol they do it every time they are next to eachother. they get going enough to shake the whole bin cage LOL so its quite loud. w 6 of them the wheels going dont bother us but whole shaking cage did...
LOL kids had candy fix while naming them.... we got m&ms, twix, kitkat, skittles.... LOL hey kids what u going to do
use to have one named bubbles, and rainbow so yeah candy was more fun this time