Your work collegue isn't that right really - kittens might bond, but you could have months, if not years of sleepness nights, wrecking your house etc before they calm down!! The majority of my permanent cats have been aged 10+ and have bonded with no probs - one of my current ones insists on sleeping under the duvet with me, she was 13 when I Adopted her, and she isn't the only one who has done that - when I had a weekend away last year, she complained to my friend everytime she went round to feed her (she is that kind of cat, whinges at anything she doesn't like you doing to her!!), so certainly 'my' cat. The majority of my oldies haven't bothered that much with the outside world - 10 mins a day is quite sufficient for them, and Molly prefers to sunbathe in teh house during the summer!! And it doesn't always matter about their history, as Ela says, a lot of cats are just grateful for that second chance. So, my advice really would be to go to your local rescue, explain your working and holiday habits, and see what they have in that would be suitable, you might be surprised at what you fall in love with, and adults are a lot more suited to people working 9-5, they are more content to be left without being destructive!!