Abstract: The invention is drawn to a retractable guard for use in a sewerage or drainage line having a plurality of prongs with hooked ends are disposed within a sewage pipe downstream of a toilet. The opposite ends of the prongs are connected to a tubular member which, in turn is slidable within a housing connected to the pipe. These prongs can be used to trap articles which can then be easily removed to rectify stoppage problems or prevent contraband from being distributed through the drainage lines. For convenience in cleaning, the guard device can also be provided with a quick-release connection which separates from the pipe with a simple twist. The prongs can also be magnetized to trap metal objects. The prongs may also be mounted on a pivoting shaft to enable mounting within an angled pipe. For convenience in inspection, the guard device can be provided with a clear portion to enable visual inspection of the interior of the guard device.