PEST CONTROL APPARATUS AND SYSTEMS
An invisible wall for mice that jump over glue boards.
An adhesive glue board is placed along the rodent's path between its nest and a food source. An essentially transparent panel stands upright across the middle of the board, extending its full width. A mouse attempting to leap over the glue board strikes the panel, is stunned, and falls onto the adhesive surface below, where it is ensnared. Over time, the rodent starves and expires on the board.
“Rodents, though, are cagey creatures at times. Limited intellect, notwithstanding, the use of glueboards over time has lead to a rodent innovation of jumping over (aerial traversal) the glue board itself, bypassing all protections and control it provides.”— Dennis Siebert, from the specification
And the world did not beat a path to his door.