I bossed a RX burn earlier this year where 1) the burn unit was small (~40 acres as I recall) 2) the fuels were light 3) there were SUPERB control lines on all sides 4) I had enough personnel and equipment to cover any foreseeable contingency 5) flat topography 6) favorable winds 7) atmospheric conditions conducive to good lift. Problem was, this burn unit was RIGHT ACROSS THE STREET from one of those new gated cookie-cutter communities. The yards closest to the street all had more-than-adequate defensible space, and there were 3 rural FD's within 10 minutes' drive. We lit it off, the smoke lifted nicely, and everybody went home. Nonetheless, we got a dozen or more serious complaints from irate homeowners wanting to know WTF we thought we were doing burning so close to their homes. No harm came of this one, but what if I'd lost a line? It would be MY ass on the line. That's something I don't like to think about. We do our job as well as we can, using the best science we have, during the few windows of opportunity we get. What are we supposed to do -- let everything build up to explosive fuel loading levels and then apologize for not doing something sooner?