Thanks. Nothing else happened - I was calm and polite throughout and it was for personal use. To meet me I expect you wouldn't think I'd been on the wrong side of the law or even that I like a smoke.
Wife and kids can go and have but the kids are still very young so miss their Dad while Mum has her hands full looking after them alone. Kids have UK and Thai passports. Wife took it really well considering she had to sell / pack up everything alone while looking after small children while I applied for her UK visa. We have a good life here so she's not desperate to move back or anything but would like to visit more often and have me there to help with the kids etc.
Changing passport etc won't work as my finger prints are in the system. I actually changed my passport anyway before trying to go back before just because I didn't want the deportation stamps for all to see but was pulled aside when scanning my fingers.