I built this circuit (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?

^{simulate this circuit – Schematic created using CircuitLab}