Noah and his friend found some snails while playing around the house this evening.

Are all snails inherently pests or food?  Do they attract good birds at least?

None the less, I found them to be a challenging subject for photography.  Unlike ants or caterpillars, which zip out of the frame, and for which you prepare yourself, snails simply ooze out of focus slowly.  In a very passive-aggressive sort of way.