And at the next custody hearing, Federline will also brag to the judge about the childproof lids he installed on each of his bongs, a measure their irresponsible mom has yet to adopt: "'The house is child-proof, except for the recording studio,' Kevin's friend, who visits Kevin and the kids at his home, told 24Sizzler.com Monday afternoon. 'There are gates at the top of the stairs [to prevent children from going down the stairs], the plugs are covered. All of that stuff is in the house.'" [24Sizzler]