I've just had to watch a fencing contractor doing the back fences of a garden on a property adjacent to the nature reserve throwing 3 huge glass panels (approx 0.50x1.5 metres each noisily breaking into pieces, it took two people to even throw them over the fence) and assorted other rubbish over into the nature reserve.

Makes my blood boil. Not only is it fly tipping, but it's a danger for local wildlife as well as any kids going into the reserve with their schools(groups from local schools have been using the reserve for nature walks in the summer months). When confronting the contractor, their boss hesitantly apologized, said he didn't know his staff had acted that way (as if) and that he would insure the rubbish would be collected afterwards. Only a. it's now in a thousand pieces of glass and b. the nature reserve is locked and inaccessible, so chances of them clearing this up are zero.