There is no good angle for cookie thievery. Walter has the tin directly in front of him and is holding it tightly. A little too tightly; the lid is denting a bit.

"This house is huge. There are plenty of places I could go to get away from that stupid game. And you, if I had to."

Yes, he heard that last bit. Cookie tin grip increasing.

"And if you tried to mind control me you'd never get another cookie from me for the rest of your life. Is that worth it?"