there was a little farm pond on some rough ground near where I grew up, and I used to catch them with a bit of bamboo cane, with some wool tied to it and a worm tied on to that. there was big plans for new housing estate on that land but when somebody saw me and asked what I was doing, I showed them. its a nice little nature reserve now with little pontoons etc and is used by the local primary school for teaching the kids now.