All I ever caught with glue boards was rat hair
I have seen and hear those stories. It was a very common reason for visits when I was a Vet Tech. Some you could save...some you could not. My own dog got into some snail bait someone else had put out. Fortunately I recoganized the symptoms and got her in right away. Also very fortunate for me that, since i worked there, I only had to pay for material costs.
I'm telling ya...the electronic traps are the way to go!. They are pricey but well worth the money. We have 2 now. I keep one near the finches and move the other around as needed. One set of 4 D batteries will kill a ton of rats/mice. I had been hearing chewing around my big Rubbermaid storage container I keep chicken feed in and then one day saw a very well-fed mouse make a run for it when I opened it a couple of days ago. It had chewed a big hole on one corner. I cleared out a space at the back near the hole, put a little penut butter thre the holes in the back of the trap, set it in place and flipped the switch. Next morning...a well-fed DEAD mouse. I have cought more rat/smice with that trap than any other method. You just dump them into trash, rebait and reset. No prying them out of snap traps and no smell of rotting dead rat that was killed by the bait. No risk of poisoning my pets.
http://www.homedepot.com/p/Victor-Electronic-Rat-Trap-M240/100400789