Yeh its suprising what can affect snares sight,scent, setting and knocks, there not always down to rabbits, I've seen stoats climb up fences and through snares, and other critters slipping through.. Tell you what its a nightmare getting a hedgehog out, same as in a longnet when they ball up tight, but there always released unharmed, they just sit there quietly....... Got some good sections to get at next week, I'll take some photos...