Meticulous hygiene is a MUST in that situation.
Those of us who have little boys know that it is a pretty major battle to get them to
1. Wash their hands before meals
2. Change their muddy clothes
3. Brush and floss their teeth
4. Trim their nails
5. Pick up their stuff
. . . . etc. etc.
And from THIS sort of creature you can expect "meticulous hygiene"? Not hardly.
The way I look at it is this.
I'm lost in the forest with some beautiful chick- no rain, no streams no lakes. Given that the cleanliness index is related to the willingness index, I figure that I got two maybe three days more than the guy with the gratuitous penis flab for a few moments of ecstasy. No way I'm gonna give up that chance.