Entrance Trap

This is a schematic for a door, with three levers. The lever on the RIGHT opens the door and the other two levers cause the gravel under the levers to fall out, and then for TNT to detonate and kill the player.

The point would be to make sure people don't get in your base while you're not there. I am aware the door must be open if you are inside.

The wire for the opening door can be found in the back of the schematic, exposed. If you want, you can change it to close behind you.