"I hate to ask, but I've come into some rotten luck. I haven't had anything to eat in days. Would you perhaps have anything to spare?"
He looks at you with puppy dog eyes. He does look very hungry.. But, you only have one chocolate bar that happened to be in your pocket when you fell into the portal.
'Wait, a portal? What is a chocolate bar? Why is there one in my pocket?'
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A) Give him your chocolate bar.
B) "No, I don't have anything for you. Go beg someone else you vagabond."