It's a fantasy role-playing game.

DM: You are Keyleth, a half-elf druid . You are the member of the famous group of adventurers. Previously, Vax dashes past Greenbeard towards Kevdak, one of the herd members outside the arena attempting to swipe at the rogue but only catching feathers from the Deathwalker's Ward, and attacks the paralyzed Thunderlord with both daggers in hand. The blades strike true, Vax sinking the weapons up to the hilt into the flesh of the goliath, and the rogue flees the arena, but not before he leaves some parting words for Kevdak.
DM: Marisha, you do get an attack of opportunity, it does fall and hit the barrel next to you, I mean, next to Vax. It doesn't hit you, but it spooks you momentarily as it slams onto the barrel next to your side and rolls off.
Player: Rolling terribly.
DM: What'd you get, Keyleth?
Player: Ten total.
DM: Ten total? Misses.
Player: Oh no, oh, I had to roll to hit. I'm sorry, I was rolling damage.
DM: What'd you roll?
Player: I didn't roll to hit. To hit, that is, plus, 16 to hit?
DM: 16 versus the archer? 17. Just misses.
