[He mutters something under his breath in Greek, then looks over at his dragon.]

Hey, c'mere a sec. There's a Cerberus in here.

[The dragon's claws and fangs aren't likely to work any better, but he does take a bottle of water out of a makeshift saddlebag and take a deep breath.]

This is probably going to get me smacked across the room, so...pray I don't spill any on myself.

[Because yes, he's about to pour some holy water on the roots.]