Now before we begin, I am going to need you to go out into the hall and grab a few things from my office kitchen out there. You should be able to find them all, and then I'll explain the therapy when you return.
If you could go grab 3 small ziplock bags, or any small baggies, even condoms would work if there's any on the health nurses desk outside, - but make sure all three things you grab look identical.
You'll also need 3 tall non-transparent glasses or mugs - some sort of glass that you can't see through.
You'll also need a plastic grocery bag, or any bag actually - but something larger - even a shoebox would work.
And lastly, just a regular old drinking straw.
After you get those things you can come back here and we'll be on our way!