It's a fantasy role-playing game.

DM: You are Nott the Brave, a goblin rogue . You are the member of the famous group of adventurers. Previously, Yasha has a tinder box, so you uses Mage Hand to hold the dynamite, Yasha lights it, and you and Jester (who has cast Pass Without a Trace and needs to be within 30 feet) sneak up and move it into the house. After a tense pause, it explodes, blowing apart the tree and knocking the troll prone, and allowing the party a surprise round.
DM: Each Magic Missile, the spray is still jumping off of its body in these very proximity-based sprays of terrible toxin. So yeah, it's still happening.
Player: Can I scoot back behind that tree to the west?
DM: Are you only making the one attack?
Player: I'll make another one when I get over there.
DM: Over here?
Player: Can I go farther around? Just as far around as I can-- yeah.
DM: As you're rushing past.
Player: That one hits. 19 plus something. This is not a sneak attack, though.
DM: Correct.
Player: Well, poo. Six points of damage.
DM: Six points of damage to it. As the bolt sticks in the back, you watch as one of its bulbous pustules sprays venom behind it, impacting nothing in its proximity.
