Gulity consciences

I was finished my 4th roll of film of today for my street photography and decided to take a photo of a man playing a guitar, I took his photo then dropped my money in a tin on the floor near his feet and walked off. I finished the last photo put the camera away and decided to do some shopping as I was coming out of the shop the man who was playing  the guitar started shouting at me " Hey you!! why did you take my photo?? ive done nothing wrong I have nothing to hide so why are you taking my photo?" I then kindly explained why I took his photo and that I didn't want to interrupt his singing to tell him why I had done it, he then went on to explain why he has nothing to hide and I can check up on him if I like. which I backed away slowly saying that's ok it for college............That's the 2nd time ive been pulled up from people thinking I work for the Income Support.

The above image is not mine