rosie is pretty oridnary fare with regards to what kind of music was going round at the time so it's entirely plausable that it's just a coincidence.

on the other hand, if kiss "finally" recorded it in 89, we cna assume it was kickign about for years before rosie was written so it could have been Jon ripping off childs work

does child have a writing credit on bad name? i cant remember off the top of my head but if he did and he came up with the intro then he can use it in anything else he wants wether it's bon jovi or not.