I look after my daughter's 20-month-old cockapoo one or two days a week.
We feed him three times a day.
We take him for walks, one in the morning and one in the afternoon.
We have an enclosed garden he can gander around.
We play fight with him for bone chews.
Then we get on with the stuff of life - cooking, work, admin, reading, Sudoku, gardening etc.
And the dog ..... follows me around expectantly.
Do your dogs amuse themselves? Is this one particularly needy? He will eventually flop and sleep out of sheer boredom when I am PC-working and resolutely NOT paying him attention, but hops up the minute I move from my desk.