i never utter the word in front of friends. even when i am
seriously pissed, i will always forcefully abort the word at the
"ffffff...." sound. and i will take a deep breath to calm myself.
and apologise for almost saying that word. 
but at home, alone, say, i snubbed my toe again a table, then i
will cry "fark!" and curse the table to hell.
i do that around my brothersalso. but never when my mum or dad are
around. 