So I've had a couple asking how difficult this technique is on doors that have more substantial locks than just a knob lock. I didn't mention this in the video, but if the dead bolt(s) have long throws (greater that 3/4") it may be necessary to insert the Adz end of a Halligan bar in the seam on the latch side of the door after the hinge pins have been removed. This is where a second Firefighter assisting becomes important - The first FF keeps the hinge side of the door outside the jamb (with a wedge or another tool) as the second FF starts to pry the locks out of the latch side of the jamb. If the deadbolts are torqued, even a little, it can be difficult to "walk" the door free - So the Halligan can create a little more leverage to pry the locks away from their strike or keepers. Another reason to have a quality Halligan bar or one that has a "refined" or thinner edge Adz - Which allows the tool to work in tighter areas/jambs/seams. Hope this added info helps, but remember nothing beats getting out there and trying this technique yourself. Find a metal door with a metal frame/jamb around your firehouse and give it a go!