"Did I suggest you don't?" But he's still following him to hopefully liquor and not some kind of weird murder scenario. Either way, it will give him something to do. The man's follow-up gives promise and John finds himself slotting in close again as they walk. Someone who isn't going to get attached to him is an imperative quality in an ally as far as John Constantine is concerned. Now the trick will be not getting attached himself. "Then you'll want to stay far away from me, mate."