I adopted my collie around 10 months ago, and as he has more than the usual issues I'm wondering whether to get a second dog (it would a foster, not permanent). There's no doubt that he likes being a one-dog family, and although he doesn't run around playing continuously with dogs, he does tolerate and say hello to them on walks. Around the house he has impeccable manners and would be a great role model for any newbie, but it's just on walks he has really serious noise phobias, which cause him to flee at the slightest noise. Would this cause the foster to catch on to his habits? I would wait a couple of months until the summer so that we have all day to spend with the dogs, and also if it turns out to be a nightmare there's more chance of the dog being adopted quickly. I'm willing to go out of my way to make it work, but Chip has been going so well lately and I don't want to ruin all our hard work by introducing a new obstacle for him. Any tips on how to make it easier or do people think it's a huge no-no?