the front door was manned by a smartly uniformed man who swept the door open and bowed gracefully in a single movement that was so smooth it seemed to be effortless , although it had been practiced for months and put into practice for over twenty years the doorman did not blink an eye at the limousines , bentley 's roll royce 's and ferrari 's that stopped in front of the doors constantly , disgorging the rich , the famous , and those who were infamous and their entourages and hanger-ons , or at least , not usually the man stepping out of the bugatti veyron super sports was enough to make even the calmest of the adam 's staff feel nervous and flustered .