"I've every intention of being careful, Simon. You might give me some credit."

Irritation flickers in his glance, but he keeps his tone reasonable.

"I'm planning to make arrangements to have a sufficient supply of my medication on hand for the duration of the trip, as well as to transport the nebulizer apparatus along with my luggage so that I won't miss even a single blasted treatment, no matter what." Frustration flashes, at that, and is immediately suppressed. "I've promised your mother that."