What are the resons that annoy Doris and Cyril ?
They are literally horrified to see thier mom sitting on the dinning table and smoking. Doris feels outraged when her mom call Charlie Spence a dim-witted man, and refuses to prepare tea/supper or iron her dress.
Cyril gets agitated when his mom refuses to make tea and denies all his requests,telling him to go and do it himself rather than annoying others.