Why do fireworks always get 5 cop cars? Anyways, my friends and I would throw firecrackers at cars or put them in the street and light them right before a car would come (at night so we could see the headlights coming around the corner). We did this every Friday night. One night, a cop car came and we threw a "grand finale" bag full of a bunch of firecrackers and it went off right under his car as he passed over. This caused 4 more cop cars to come and a fire truck. We had to hide in a ditch as 5 spotlights looked for us. This is just one time the cops came and we used to always get random people coming out of their cars and chasing us. We never got caught.