Soundproofing Bathrooms

I'm just wondering if anyone ever considers soundproofing bathrooms when they are making plans for a commercial building.  I don't mean large buildings where there are large multi-stall bathrooms.  I mean what about those of us who work in a small office with a few small bathrooms right next to co-worker's desks?  It's really embarrassing to be a new employee and knowing that all your bathroom "noises" are filtering through the walls.  Just saying.  Someone should really think about sound-proofing the bathroom.