That expression inspires real fear in him before Caleb even says anything. He flinches like a dog that remembers being hit, even when there's no fist to be seen. Anger is terrifying, passionate, and Gabe has learned to avoid it.

"I-I..." he stammers. Under the counter, he grips his hands tightly together as if it can keep him from flying apart. "I can..."

But he can't explain. How can he possibly explain?