I've just got in from work. DH has watered and checked Dhorse but doesn't put on rugs yet (in training!). He's (horse, that is) has been rugless all day and some nights when the forecast is for dry weather. I've just checked and it's due to be 4 degrees, dry and clear here. He's got a full winter coat and has only ever worn a rain sheet but I thought under about 5 degrees I'd probably need to rug him. He's a bit fat and my instinct is to leave him without also I am lazy. He's not got a shelter. What do you think?