I find that they are most likely to show up with 400K volts applied correctly, or stuff that goes boom. (We won't discuss walnut hulls)
Certainly not currently lawful, and I don't suggest that anyone do that.
"You gonna fish? Or you gonna talk?" Old joke...
/johnny
The lake that is the closest to me (< 1/4 mile), if you go down there and hang your feet in the water, the bluegills literally attack you!
They don’t have much at all for teeth, so it just tickles, I always crack up when I see kids go in the water and start screamin.
And there are some MONSTER bullfrogs in those waters, but they are very, very wary.