Complaining Guinea pig

This is Rio. He is a very vocal pig and always wheeking for food.

• eg. crunching apple sound,
  
• smell of apples,
• fridge,
• me opening rats cage (which usually means they are up next in line for vege)
• me coming home,
• my voice, when he hears me talking in the living room..

And that is him complaining why i disturb his lunch time...