Dumbest newbie thing,you did at the drag strip.....

What was your siiliest stuff you did at the drag strip?.For me,when I left a trail of loose sand,down the right lane at Famoso test and tune night.El Caminos,hook up great,with the tailgate down and about 100 ibs. of sand stuffed inside. Well damn,the corner of the burlap bag tore. Of course,I poured sand all the way down.The track crew,wasn't quite as nice next pass.What do you have to share similar?