my friend and i used to glue fins and launch tubes directly onto those model rocket engines and shoot them off. we didn't have the patience to wait for the glue to dry. so one goes off all haywire, and lands on a neighbors roof, still firing away. instead of just running away (no one actually saw us light it), we decided to run out front and act like we saw it flying over our heads or something, like we were as surprised as anyone. Busted immediately.