The cough didn't get so much as a blink - but it did get Iruka to reach absently into one of his vest pouches and withdraw a piece of honey hardcandy. This he offered to his friend in a way that spoke of long practice as he glanced at the clock then finally lowered the stamp to paper.

"Well! It's a good thing my shift just ended. Guess I can walk with you there. Wanna pick up something to eat after so you don't have to worry about cooking?"

See this innocent look? It's because he's pretty sure Hayate was going to skip right on past the hospital if left to his own devices and Iruka was tired of his friends not treating themselves properly.