I found out that if you have a clown Halloween mask do not leave it on the back seat of your car and especially not if there is a roll of duct tape on the floor. A group of us went out to lunch and I had offered to drive and one of the ladies that I work with had a serious crying fit when she saw the mask in my car. it took a bit to calm her down but we did.
Putting it in the trunk could have been worse, I have a bunch of hunting gear (rope, knives and a tarp) in there that I should take out.