I am replying to Dave's comments about saying NO to entry into vacant buildings. In LACFD, way back in the late 1980's the we had considerable discussion among most Chief Officers that it was dangerous to committ firefighting co's to vacant buildings. In addition, When the Div 3 (ICS 3rd. floor fire attack) came to the CP asking for 5 minutes more of hose line placement. "Im sure we could wrap this fire up" Many times the IC gave the B/C the five minutes only to discover that within a months time the building was torn down and now there sits a vacant lot. What if something went wrong? Firefighting is dangerous as we have learned over the years. Most LACFD Chief Officers decided that when they ask for "5 minutes more" the answer is a resounding NO.