There have been a couple of phone calls to his house, but he hasn't returned any so far. I just left one today, if he doesn't call back, I'll just take it as everything is okay and he just doesn't want to talk to me. I have learned that when someone doesn't respond, the first time, to try again, if they don't respond the second time, they don't want to be bothered by me so I stop. I use that with PMs and emails also.