Normally I say let 'er burn too. But from the What If Dept, over the weekend 2 off duty firefighters rescued a 4 year old from a burning SUV. From the video it seems clear that a fire extinguisher on its own wouldn't have knocked down the flames entirely. A fire extinguisher *might* have provided some supplemental fire suppression and prevented the child from being burned as badly, then again the real struggle was to get him and the others out of the vehicle. In other words - if I were there, I might have directed my auto fire extinguisher to suppress flames, then again if there was room to help haul the kid out quickly I might also have dropped the extinguisher to help out. No quibbles from me with what they did to rescue - split second decisions to effect rescue literally from the flames. There is full video of the incident and an interview of the firefighters up on MSNBC. Pretty intense stuff. http://www.msnbc.msn.com/id/32006584/.