What would you do...

He has hopes of winning American Idol? Well I will pray upon that hope! Knowing he would be a fan of American Idol due to wanting to win it some day I will jump in to his emotions! I would pull up a chair, sit behind a desk and say in an English accent "That was the worst robbery ever. You have no criminal talent and should give up on that line of work...I don't know what I'm doing here to be honest, I came here for talent".

He will be so upset and destroyed that he would use the gun on himself.

And I'm totally so super cereal here.

You have the mind of a genius.

Ask if he was planning on finishing the skittles, fuck my diet it's Christmas, gotta get me some sugary goodness

If somebody has a gun in his hand and some distance between the two of you, unless you are a professional baseball pitcher (IE: throw a can with great force and accuracy), I think it best to just acquiesce.
Skittles? Does ANYBODY still like Skittles enough to steal them at gunpoint?

Ahh, I would tackle the robber. Then, I would take his skittles, and eat them. THEN, I would take the gun away and get some money of it back...but I would probably sneak a few hundred bucks with me! I like roleplay! ◠‿◠✿

Break into a musical tossing around skittles like confetti

Love the jibes at the facebook updaters. They really get your noodle huh?

You do as the robber says, especially because he has a gun and you are less likely to be able to disarm him as he's given the upper hand already pointing it at the cashier.

the american idol thang would definitely seal the deal with me pullin out my own gun and droppin that fool

Ah! More roleplay!

I would politely ask if the robber would leave. If not, I'd try to attack or snatch the gun away or something. Once unarmed, I'll ask him if I could have some Skittles.