When I built my new run I went to great lengths to make it fox and rat proof. The food dish hangs from a chain in the roof and I didn't take it in at night. Within a short time I noticed there were slug/ snail trails all over it in the mornings so I started clipping it up high at night. This morning I found what I first thought was a snake on it, but no, it was the biggest slug I've ever seen. The question is.... how the hell are they getting to it? They must come through the wire at night but then they would have to crawl up the sides which are about 8ft high and across the underneath of the roof then down the chain. Does anyone else have this problem?