Water on a stick prank

This is another classic water prank. What you will need is:

1. Plastic container
2. Long stick
3. Water

First you fill the container with a water, then you climb on a chair and make the container touch a ceiling. Next you take the stick and pres the container up until you can hold it just with stick. Now you ask someone to hold that for a second and than you move away with chair and leave them on their own. In one point he/she will have to drop it, and the water will splash him/her.

Tip: You can say that you trapped a spider inside that container and you are bring a vacuum cleaner, or you can say it's a magic trick.