It's a fantasy role-playing game.

DM: You are Caleb Widogast, a human wizard . You are the member of the famous group of adventurers. Previously, The horse pulling the party's cart, spooked after being smacked on its rear end, rides off into the northern fields. The party chases it down and sets off northward up the Amber Road, passing along the way a large caravan that doesn't stop.
DM: To be fair, your face itches in general from the sheer amount of filth that's on it. It's hard to really differentiate.
Player: In the middle of the field you hear Ooh, look at that! What do I see?
DM: Make a perception check for your birdie.
Player: That's a nine.
DM: Glancing over and doing a wide pass around as everyone begins to gather their things and head towards the cart, the road's pretty open. At this point, the previous caravan is invisible from that height, the hills close that distance. You don't see anything coming your way. It seems pretty open and safe.
Player: Okay. I keep flying for a little bit longer.
DM: Okay.
