Chris,<br><br>On this more mundane aspect of survival,<br><br>My neighborhood is teeming with skunks. Nighttime walks & errands in the yard guarantee regular confrontations. <br><br>We have found that singing, humming, or whistling warns the frequently hidden or unnoticed skunk of our approach, so that they flee rather than spray. That has been invaluable to us absent-minded types.<br><br>John