<human>: Could you distill the essence of the text into 1-3 sentences?

Me and my sister had a discussion about a guy holding a sign on the side of a road today.  She called me heartless for not helping the guy with $1.  He held up a sign that said he had cancer and was a war vet.  Am I the only one that doesnt believe strange men holding cardboard signs?  I know there are a lot of people in need out there but if I gave $1 to every guy with a sign I saw I would be out there with them.  What's your opinion? Give them money or save it for another cause?
<bot>: One of many homeless guys on side of road.  Being heartless I refused to give him $1.  Am I wrong?