Houses when left unattended start to go back to nutare . . . the grass grows outside, the shrubs aren't pruned. . . .gutters don't get cleaned and nutare starts reclamation in the smallest way . . . mold. First it is mold, then moss . . . .bugs that we would normally brush away during regular cleaning get in and colonise. Mice and other small beasts will sense that there are no people or pets around and what do you know . . . nutare has begun to reclaim the property. You can smell it if you've gone away on vacation for more than 10 days.