I attended UTC for a few years and lived on campus. Coming across a beggar on campus was not uncommon, particularly on weekends. We quickly learned to travel in groups, safety in numbers. After a few encounters, our standard answer became... "we don't have any money (college students... duh), but we'll gladly get you something to eat from the cafeteria with our meal card if you're hungry."
My roommate and I were on our way back from lunch on a sunday and a guy actually took us up on the offer. I recall him being somewhat scruffy looking, but neither of us got any sort of bad vibe about the situation. He walked about a block with us back to the cafeteria. He sat on a bench outside, we went in and got him a big tray of food... burger, salad, fruit, pie, etc. We handed it to him, he thanked us and ate it right there.