Wishing for a normal argument

Yesterday on the way to the chiropractor, TJ and Sam got into a heated discussion as to whether dry ice (which at first, they were calling 'hot ice', so I really had no idea what they were talking about) was really really cold or really really hot. 

Later they were bickering over when the galaxy was going to explode and when the Big Dipper was going to shift its constellation. 

Please. Can't we argue over who gets the last cookie or who gets the remote control?