Possible Clues:

• Failing to notice details
• Superior toff butler maybe found to be inattentive
• Spotting little upper-class man hugging another one
• Close to you, swell man's inattentive
• Posh toff's valet failing to attend
• University's head bedmaker maybe noticing very little?
• Not likely to see von Braun set off
• Not likely to see a French maid embracing old boy?
• Inattentive retainer supports upper-class toff
• Inattentive attendant attending upper-class toff