Hi again everyone, I forgot to ask a question in my last post. The instructions included with my SM025 mention that you should leave the door open just a bit when not in use. Does anyone do this and is it really necessary? The reason I am a bit concerned about doing this is because in the winters here in Northern New Jersey we get mice in strange places trying to get out of the cold. My hubby has found them up inside his motorcycle nesting over the winter and under a lawn mower and in our BBQ Grill. I am worried that they are gonna nest in the smoker. Words or wisdom anyone???