I'V HAD TRAPS GET SET OFF BY A SMALL TWIG!! OR BIRDS. SOMETIMES YOU WILL CATCH THOSE PESTY MAGPIES SOMETIMES YOU DON'T YOU SHOULD SEE SOME SORT OF TRACK IF IT WAS A 4 LEGGED ANIMAL. I THINK YOUR TRAPS ARE FINE HANG IN THERE, PATIENCE PAYS OFF.. WHAT ARE YOU TRAPPING ??? I HAD THIS OLD YODIE THAT WOULD FLIP MY TRAP OVER AND CRAP ON IT!!! I COULDN'T TRAP HIM SO I CALLED HIM OUT ON A COLD MORNING AND SHOT HIM.