-
Watch the bag fill.
-
Hyperventilate.
-
Pull the tube out of the bag and drink from it.
-
Race to see who fills their bag first (requires two or more people).
-
Puncture the bag near the top and see whether they pull the needle out of your arm before the blood squirts out.
-
While they’re not looking, substitute a bag of orange liquid and complain they gave you too much Tang.
-
Insist that you want to give 2 pints.
-
Faint.
-
Tell them you saw the bag twitch.
-
Yell, “Hey, you used that needle on the last guy!”