I hate to worry you but my girl is not littertrained. When I first got her she used it but than all of a suddenstopped and even now, after her spay, she still won't use it. I havetried cleaning it up with paper towel and putting that in the littlebox, spraying the spot with vinigar and water... I have even triedwashing her flooring in vinigar and she still will not use a box. Wehave gone through three boxes, different brands of litter, making thecage small so that she can really only be in her litter boxes and stillnothing. I have given up and am willing to now accept that she justdoes not want to use one. I hope you have better luck but an unlittertrained bunny is not the end of the world. They are still the samecute, fun, stupid creatures that we all love.