Barboo walks into a deserted alleyway and is jumped by a would-be mugger. Roll for initiative!
Mugger initiative: 1d20 + 2 ⇒ (19) + 2 = 21
Barboo initiative: 1d20 + 3 ⇒ (17) + 3 = 20
Mugger is up first. He lunges at Barboo with his dagger. Gimmie yer purse little lady and this will be all over soon.
Dagger: 1d20 + 2 ⇒ (5) + 2 = 7
Damage: 1d4 + 1 ⇒ (4) + 1 = 5
He nearly trips over his own feet as he tries to stab Barboo, his dagger swings wildly wide of Barboo.