I fed a stray one time that didn't seem to want touch. Then one day he came over and solicited petting. I stroked his back and he moved away, turned, and gave me a look that seemed to say, "I can't believe I did that." Later he allowed a bit of touching, but at times did not want. He never moved away at these times; instead he showed me a mouthful of teeth directed at my hand. Only a couple of times did he purr.I stroke and pet the strays that allow it, for hours. There are a few others that I love dearly too, but there's no way to show them because they don't allow touch. I give them very good food, of course, but what else could I do?