This sounds really weird and I feel like I've slightly lost my marbles. I went out to the driveway last week and pulled out an enormous thistle. I went out today, and where the Thistle was is a bag of hedgehog food. It was right beside the set of 6ft high double gates across the drive. We've had intruders and thefts fro the shed before and that's why the double gates are there as well as to keep our kids from running off when they were young. To compound it all I could have sworn I heard noises at the back of the house last night. I checked the back door and patio doors and they were locked and the gates shut. Am I being unreasonable to be creeped out and worried? My husband says not to think about it but who the hell creeps up a driveway with a bag of hedgehog food? We have good neighbours who would knock the door or at least leave a note.