All my dogs are inside exept Chance..He has the garage..(at night the door is down) there is also a heater in there for extremly cold nights. He likes it outside. I know there is danger. But I think he is alright during the day and also in the night time he is comfortable. But anyway..Maybe you could nail them to your deck..lol..I really dont know what else you could do. If you sprayed Bitter Apple Spray on there they may not sleep on them.
RIP Chance (11-14-05
) You are missed.