I assume you mean walking in a creek, so yes. A camp I used to go to has a lovely little creek that us campers always tried to drag the councilors down to. I've found many fossils that way.
TPBM likes lightning, but isn't overly fond of what follows
Ehh, I'm really not sure. I don't THINK so. But, then again, I am the girl who walks around with pepper spray all the time, so that MAY have something to do with it.