Interesting or important things and selective deafness

They are worried about my hearing again because I don't respond sometimes. I thought I had explained but to avoid any doubt I can hear:

• a biscuit packet or the biscuit tin being opened when I am asleep in another room;
  
• a saucepan being scraped or put on the floor when I am in the front garden;
  
• the front gate opening when I am in the back garden;
  
• a dog walking past our wall
• my lead or collar being moved
  
• and the dawn chorus when you are fast asleep.

These of course are interesting and important things to hear. I do not hear so well words like 'come' and 'sit' because they are generally not so interesting or important, unless we are playing the game where I run full pelt at you and swerve at the last moment, and I have previously explained the technical difficulties.