You accidentally got left and locked up inside the popgoes's pizzeria. You were hidding under the table behind a tall security guard animatronic called strings, but you didn't wanted to talk with him. You could see the legs of popgoes walking in and out to the table several times, like he's picking objects up and putting them on the table, until is the sixth time, something above the table you're hiding under moves

Black rabbit: You decided to look what's happening, and you see six parts of an animatronic on the table, which suddenly gained life formed a body, exactly like toy Bonnie, but completely black with white pupils and teeth. It attacked strings, killing him in the process. While floating to Fritz's office, she stops, and slowly turns towards the table you're hiding, like she knew someone else was in there...you!