Akademik

Под каждой крышей свои мыши
There is no community or fam ily that does not have any troubles or shameful secrets. See Каждый дом имеет свой содом (K), У каждой избушки свои погремушки (У)
Cf: Accidents /will/ happen in the best of families (Am.). Accidents will happen in the best regulated families (Am., Br.). No house without mouse (Br.). No larder but has its mice (Br.). There is a skeleton in every house (Am., Br.). There's a skeleton in every family /closet/ (Am.)

Русско-английский словарь пословиц и поговорок. . 2013.