I haven't used it myself, but drops of dry blood indicate the previous owner did. Eeeew. One more thing to add to my used car checklist
Reminds me of a family story. My uncle had a mid 70s 280S. Someone packed an aerosol can in the first aid kit. So one day he's driving and the can pops out of the case, takes out the rear windshield and dome light then takes out the front windshield (I don't get the physics, but that was the trail of damage). This happened on a rural road in a communist infested (my apologies if this is politically incorrect) area in the Philippines. It took a long time to figure out he wasn't shot at.