Here is what you do. Get some good cleaner for internal carbon build up. The night before you decide to remove the plugs when you get home from hanging out while the car is hot and still running remove the PCV tube and spray some of the cleaner in there (car should stall out) but it should break up most of the carbon which is one of the major reasons the plugs break. After that remove the coils, loosen the plugs 1/4 or even 1/8 turn and spray in some PB-Blaster, decent amount you want it to wick down the plug over night. Next day when cold, slowly slowly slowly remove plugs 99% break free when done this way. Many Ford tech take them out hot, mine do it all the time, but then again they have the tools and experience to remove broken ones.