I've heard the idea of land mines brought up often. Actually, with Space guy's wrench events, you can make your own.
Simply place a brick on the ground or a sturdy baseplate and then use the wrench on it. If wrench events is enabled, you see a blue 'events' button. Click it and click the green plus to add an event. click the event to change its type, and select 'wait for'. In the options menu, select, instead of 'triggered', 'touch'. Both people and vehicles will trigger this. Now add a new one and select 'shoot'. Choose 'weapon' instead of 'special', and select below it, 'Rocket Launcher'. This fires the projectile of the RL. Now tell it to aim straght down by clicking the down arrow. Presto! Now you have a brick that, when touched, will shoot a rocket into the ground, exploding it, and the brick, and the poor fool, and respawn when the brick respawns. You may want to paint it green or black, to be hard to see, and, asthetically, try using the small round disc brick.
Use similar tactics to plant detonators for a self destruct sequence. Set a brick to trigger others to do this, and detonate your building. You may need a lot of them!
So, good idea? Any further suggestions?
