I used to catch them when I was a teenager. I'd take my handy critter-catcher (referred to as CC, henceforth), position myself in our field and wait for a big juicy one to stray a little too far from it's burrow. After a mad dash and some deft CC wielding, I'd have my prize.
The key was to catch them far enough away from their burrows that they'd have to run. I say run, but they actually bound. And they won't do it for very long. Depending on how thick the grass is and how close you get to them, they'll stop a square off with you. They'll stomp and pop their teeth and create a fuss, but it's pretty easy to get a loop around them.
It does help to have a little brother or an idiot friend around to block their escape, though.