Tokyo firefighting service ran up its casualty list...

The Tokyo FD, at the time of the late March 1945 firebombing raids ordered by Gen. LeMay, was steeped in ritual and custom. Each company had a standard bearer who, at the scene of a large fire, would often leap into the flames. They often chanted religious poems & songs instead of hurriedly fighting the fire, & then, after extinguishing a portion of it, would stop spraying it to chant & sing s'more. Their efforts were usually more of a ritual than timely, effective firefighting. This was especially true during & after each firebombing raid.

Thus, the fires spread more than they would have had effective firefighting been used, & casualties were greater accordingly, especially when poor firefighting allowed the flames of the first raid to become a firestorm, impossible to extinguish til it burned itself out.