Tongue failure

The people tease me. There is yummy milk in the bottom of this glass but I cannot reach it.

Why do the people tease me? Why do they put yummy milk where my tongue can barely reach?

"Puzzle," they say. "Solve it, Dog," they say.
I do not want to solve the puzzle. I just want the yummy milk.

But wait!

Aha! I am problem-solving-dog! I am clever-dog! I do not need people with their thumbs! I can solve the problem on my own!

Yummy milk...