Not the brightest button

A returned home last night so Hector was ecstatic. He has followed him everywhere today.
We gave him a late Christmas present this evening which has been held back to coincide with A's return. It's meant to stimulate the dog and present challenge. A placed some tasty morsels in the slots sliding the discs to cover them.
Hector managed to retrieve a few of the treats but lost interest. He didn't seem to exhibit any methodology in his problem solving, so he needs further practice!