This is a very good prank and it incorporates science which is always good because science is brilliant.
Step 1: What You Need
You only need 3 things ( 4th is optional)
4-(optional) A Jug
Step 2: Filling the Bottle
Fill the Jug or pour it straight into the bottle. Make it almost full.
Step 3: Piercing the Holes
Flip the bottle upside down and pierce multiple holes around the bottom.
Step 4: Positioning the Bottle
Flip the bottle over and dry the bottom.Because there is no air flowing through the bottle the water will not run out until opened.
When someone opens it THEY WILL GET VERY WET.