I have a Goblin character in the campaign I'm running. He was introduced during the goblin raid on Sandpoint. One of the first things he did was jump up on a table, aiming purposely at a goblin, and fired the arrow. His intent was to show the guards that he was helping them, rather than an enemy combatant.
Instead, he rolled a critical failure, and ended up hitting one of his soon-to-be party members in the back. So all the guard saw was a goblin deliberately aiming, and shooting one of the people in the crowd.