I understand this is genuine concern but really, his profile says he looked in at 11 past 3 this afternoon. There must be loads of ABers who haven't looked in for way longer than that and nobody gives a monkey's. In fact some of them might be quite upset that they don't get a "I hope they're OK" thread.
Yes emmie I didn't mean to be dismissive but as well as seeing the one for gulliver it got me thinking why some get a mention when they don't post for a day or too and others don't even get noticed as missing.