The Ultimate one:
Take a sip when:
- Harrys scar hurts
- Someone is surprised to find that Harry is actually Harry Potter
- Someone recieves an owl
- Someone says expelliamus, stupify, stupify, lumos or expecto patronum
- Hermione rises her hand in class
- Someone says, You Know Who, He Who Must Not Be Named, The Dark Lord
- Someone winces when Harry says Voldemort
- Someone says muggle
- Someone says mudblood
- The snitch appears
- Soemone says the password for the Gryffindor common room
- Someone transfigurates, apparates, uses a portkey or floopowder
- Someone eats wizard sweets
- Something explodes in Seamusīs face
- Something attacks Neville
- Harry uses his unvisibility cloak
- Dolored Umbridge makes a Hm-hm
- Dolores Umbridge comes up with a new law
- A ghost appears
- Mrs Norris shows up
- Anew monster og creature is introduced
- Harry says Mischief Managed
- Someone mentions or uses Polijuice potion
- Someone comes to warn Harry
- Harry is out of bed
- Harry sets out on a suicide mission
- Malfoy is rude to Harry
- Harry suspects Snape
- Harry defends Dumbladore
- Someone says Harrys eyes are like his mother`s
- House points are taken or given from Gryffindor
- Someone explains Harry something he is really too young to hear
- Someone denies Voldemorts return
- Malfoy says he`s gonna tell his father
- Hermione makes a reference to something she read or goes to check in the library
- The twins speak in unison
- Someone gets detention
- Percy explains he is Head Boy
- A picture talks
- Someone kisses - drink it all!!!