Obvious stunt double for Morgan Woodward during the fight scene at the end, as the stuntman's hair is much thicker.
While Dan is preparing breakfast during the epilogue scene a sausage link falls on the floor, which he promptly kicks under the stove.
At the end when Dan is making pancakes, he pours then on the grill then answers the door. After the guest leaves, he remembers the pancakes and runs over to the now burning pancakes. However the top side of the pancakes ate black which would not have happened unless they had burned on that side and then been flipped which they had not.