Talk about the penalty for stealing in islam and about the charity in islam.
Talk about how those two things coordinate, to clarify how people think cutting off a hand is barbaric,
when in fact, in an islamic state, if the poor tax is actually paid and society runs right, there would never be a need for theft, therefor anyone who would steal would do it out of greed, so this is to deter him
and let them realize that in a land like this, you might have that happen to one or two people, but no one would actually do it and end up handless due to fear of being handless
therefor no one would be overly poor, and no one would be stolen from
i did a paper on that in high school and everyone was so amazed... clarify islam for them