My stray kitty, Franky, has been with us foe about a year and a half now. In the last six months or so he has gotten a lot more relaxed around us to the point he will let me pick him up. He loves been petted under his chon and scratched behind the ears. Even he enjoys the attention, we have never heard him purr. I even touch his throat to see if there is any vibration but nothing. He is deaf, but I have been told even deaf cats can purr. He does not meow very well, it is very weird, kind of long and weird sounding. Any thoughts?