Yup, when I am going out the door to work in the morning and the rest of the house is still sleeping I double and triple check that the ash pan and firebox doors are latched properly...and on my wood furnace setup I always make sure the barometric damper is doing its thing and I glance at the reading on the manometer and temp gauges too, just for extra peace of mind...always glance up at the chimney on my way out the drive too.
Never never never walk away from the stove/furnace with a door not fully latched!
I do too; always look at the chimney. At my place and any other place I pass...