This is what a cat trap looks like. I've used one many times. Actually I caught 2 of my cats (Oliver and Raisin) with it. They were both strays living behind my work (at separate times) and I used a cat trap to catch them. My cat Jimmy was also caught in it. He was just a little tiny kitten, stuck under a bridge in a swampy area. My friend spotted him and sent her husband home to get her cat trap. They snapped dog leashes to it and lowered it into the swampy area (with tuna inside the trap). They caught the soaking wet 5 week old kitten in less than a minute. He was a little young to be getting tuna, but it did the trick and lured him in. She wrapped him in a towel and warmed him up (oh, I forgot to mention it was New Years day, so it was rather cold). Now that sad little kitten is my big healthy boy, Jimmy!

Good luck to you and your friend. I would defiantly try a cat trap, I've had good luck with them in the past.