Advice from a Dad
If your love of flatland is as big as you say then my advice would just be an expansion of what TJ said on page 1......
Ask for an explanation of what it is you did wrong, try to find a common ground to resolve the situation.
I am a father of two and "taking away" & "yelling" get me the most attention, but what I would love most is when my children stop and tell or ask me something instead of being satanically challenged youth about it. Maybe your Dad has a few pet peeves that really get to him and something your doing, even inadvertantly, is bugging the crap out of him.
Remember to talk to him, I'm sure that's all that he wants........