its all well and good advising somebody to smash the windows in on there car.but even taping up glass you have no guarantee how it breaks and as you can only tape the outside and you are striking it from that side i doubt that tape is gonna hold all the glass when you bash the other side of it threw with a hammer.the glass cud go inside the door like wayne said and rattle around its messy and a ballache, AA ,Auto-Locksmithor some kind of home lock breakage that dnt involve bashing ur windows threw.