"What exactly is British Charades"?

Well, Chris is British, and he likes to play charades, with his very own rules:

• Chris writes all the clues
• Chris decides how many points each clue is worth, after you draw it
• Chris determines the time limit based on how skilled he thinks you are
• If Chris gets funny looks or comments from anyone on your team, you get no points
• If the other team gives Chris grief, they lose points
• If you secretly try to keep tally, you will lose points
• It is not truly "British Charades" unless someone gets very angry with Chris and storms out of the room (can be multiple people, cursing is a bonus)

The game usually starts out with people taking wagers on who will be the first one to snap. Some people refuse to play "British Charades", I'm not sure why ...