I built this circuit with [Falstad][1] (with transistor \$\beta = 100\$) and my result is 2.582 mA through AM1 and 258.206 mA through AM2 (towards the negative side of the battery), in particular, even **more** current leaves the collector (in the wrong direction) than the emitter. Why doesn't the transistor block current from the base to the collector? It this not what a transistor should do? How can I prevent this behaviour? <!-- Begin schematic: In order to preserve an editable schematic, please don't edit this section directly. Click the "edit" link below the image in the preview instead. --> ![schematic](https://i.sstatic.net/PJCqp.png) <!-- End schematic --> [1]: https://www.falstad.com/circuit