Flummoxed Smitty And the (still) Mysteriously Disappeared Portal

Like an unnamed supernumerary in an epic B-movie who charges at a cave entrance only to find it close abruptly in front of him,

So, too, does our hero (no nameless spear-carrier, he) ponder the mysteries of the sliding glass door.

“I see my food dish, but I can’t smell it!”

Defying the first law of feline thermo-dynamics (I smell it, therefore it exists), the conundrum of sight-without-smell mightily perplexifies the Smee. Shall this tease him into thinking outside the box?

“I’m already out of the box, yo. I’m trying to get inside the box, where my food’s at!”