I've had my retired greyhound for 3 weeks now and have got into the habit of going into the garden with him just before bed (his last proper walk is 7pm). He always weed and poos every single time he's let out but in reality this wouldn't have happened in his racing career or at the rescue kennels, he's fully crate trained so must have gone a long while before toileting. So my question is do you think it's really necessary for me to take him out again at bedtime? It's not a massive chore but he won't go out without me and it's cold and wet!