Personally, i wish Joe and everyone else would apologize to each other and move on.

HOBBY:
Dictionary.com Unabridged (v 1.1) - Cite This Source
hob·by1 /ˈhɒbi/ Pronunciation Key - Show Spelled Pronunciation[hob-ee] Pronunciation Key - Show IPA Pronunciation
–noun, plural -bies. 1. an activity or interest pursued for pleasure or relaxation and not as a main occupation: Her hobbies include stamp-collecting and woodcarving.
2. a child's hobbyhorse.
3. Archaic. a small horse.
—Idiom4. ride a hobby, to concern oneself excessively with a favorite notion or activity. Also, ride a hobbyhorse.

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[Origin: 1325–75; ME hoby(n), prob. for Robin, or Robert (cf. hob2), used as horse's name, as in dobbin]

—Related forms
hob·by·ist, noun
hob·by·less, adjective
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.