Wow, I do seem to have to do one of these warning posts for just about every new pup I have. *scratches head* Dunno what that's about.
He doesn't need warnings like some of my other pups do - he's not any kind of psycho, he won't shoot you as soon as look at you etc. He's not a killer, though he has killed men on the job. He's not bad. He has morality, even if it's somewhat tarnished.
He is, however, likely to offend if your character is at all prone to taking offense. He insults everyone - friend and foe - and really wouldn't think not to. It's just sort of the way things are if you're a copper in the 70's. Sexist and homophobic comments and jokes will be sprayed about liberally - racist too, to a degree, though I'm going to copy the LoM writers actions and tone him down in that regard.
As for violence - wellll, he sort of swings for everybody at some point. He's a friendly sort of brawler; if you're a mate, he'll expect a smack or two back and then join you for a pint at the bar. If you're an enemy and you've really pissed him off, then expect him to try and put you in the infirmary. In canon, he normally manages to reign himself in before seriously damaging suspects in custody but it's a close call sometimes. Beating confessions out of people you know are guilty is de rigeur in the force in his time.
He's also a lot freer with his fists when he's drunk, which is often. Uh, everyday, just about.
So basically, if things in a thread look like they might be heading in that sort of direction, comment here, PM or email me (writetolive at gmail dot com) and we'll work it out. But don't let this put you off tagging him! He's still in the 70's when I'm bringing him in and so is generally quite happy-go-lucky and gregarious. It's not until the 80's where he gets a bit more dark and grown up but by that point, he'll have learned to control his fists a bit more anyway.
ETA: Forgot an important point, though it really only affects people who might read his OOM's. For the time being, Gene won't remember the bar when he leaves it. This is because Life on Mars and Ashes to Ashes have a very strong time travel element to them - for anyone reading who doesn't know about the series', in LoM, Sam Tyler gets knocked down by a car in 2006 and wakes up in 1973, working under Gene. In Ashes, Alex gets shot in the head in 2008 and wakes up, under Gene...working under Gene, in 1981. I'll be able to tell you next Friday (*squee!*) how and why this happens, but for now, Gene can't have any knowledge of futuristic events as it would spoil that aspect of canon for him. No point him pulling 0_o faces at Sam and Alex's futuristic references if he figures they got them from Milliways.
So, anyway. He'll remember the place every time he comes back in through the door but forget it as soon as he leaves. This might continue for a while but if canon gives me an explanation for all this that Milliways can work with, that might be liable to change sooner rather than later.
That is all; as you were.