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			Since I coach and also officiate, I have worked with plenty of guys who I saw from the 'dark side'.  Once, during basketball, I got my only official warning of the season, and then the next day worked with the guy who gave it to me! 
I didn't apologize, just told him that I deserved it.  He admitted that what I got too excited about was justified, but he kicked it.  We laughed about it and moved on. 
As long as your not ugly with someone, then I don't see it as a problem - just don't do anything that would cause someone to hold a grudge.
		 
		
		
		
		
		
		
		
		
	
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