The 18-year-old is accused of stealing at least three Miami-Dade Transist buses, and driving them on their routes.
Poilice say Harris wore a Miami-Dade Transit employee uniform, did not steal the fares, and returned the buses to the depot each night.
He's been charged with three counts each of third-degree grand theft and burglary of an occupied conveyance.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects
MORE: Happy Mutants