By now, you've managed to rig up a makeshift trap in your lap, but don't get too cocky. There's still a few loose ends to tie up. Literally.
Step 4: Add the Trigger Stick. This is the part where you attach a makeshift stick to the trigger, so that when you jump up and down, it'll set off the whole contraption.
Here's what it should look like:
Now, make sure to test it. Jump up and down a few times to make sure everything is working as planned. If it doesn't work, you might need to re-visit Step 3: The Trigger Mechanism.
Step 5: The Grand Finale