are you A homeless?!!

Before reading this, please bear in mind that english is not my mother language and thats my excuse for my so and so grammar another thing, I believe that god blessed us with food and some unfortunate people don't have it, the least I could do is show gratitude and not throw it..
Once upon a time =p i was having lunch with a friend of mine... we finished eating and asked the waiter to wrap whats left to take it with us, whiles we're walking and talking we passed by a man who was sitting on the floor selling some magazine i guess, he looked messy and dirty, the bag of food was with me so i asked the guy: excuse me mr are u A homeless? and regardless to my rudeness he replied yes, i gave him the food and was thinking to my self how dare me talking to a person this way! who asks a person are u a homeless?! except for me of course! but seriously who does that! it's not enough i asked him if he's homeless, i asked him are u A homeless, like i categorize things and i added homeless people to one of those THINGS
i did go back to apologize to the guy of course
Sometimes people can be rude, this time I was one of those people!