Those bunny babies (and adults) are FAST, LOL, I know, when they start emerging from the burrows the dog chases them, and they outrun her quite often. Don't worry, when she "catches them" she just wants to play. Probably scares the crap outta them a bit, but they end up "getting away" unscathed, they always know where the gap in the gate is they can fit through, mom must teach them. It must not bother them too much because they always come back.