Multiple event listeners and bind

Just reviewing the code: 

this.c3po.addEventListener("click", choice1.bind(this));
this.r2d2.addEventListener("click", choice2.bind(this));

// Function that moves the timeline. In JS, it starts at 0
function choice1() {
	this.gotoAndStop("bantha");
}

function choice2() {
	this.gotoAndStop("rocks");
}

When clicking on R2, it should go to "rocks", but it goes to "bantha" instead, IF you've already gone to "bantha" and have clicked the Back button. I'm testing in Google Chrome.