I will end by adding
that if you dropped a 2p into the pint of anyone I knew who was aware of 'pennying' they would make you drink the beverage in question for using a 2p instead of a penny.
( WormuIus, Thu 11 Sep 2008, 12:18, archived)

I have just showed this thread to TFS
who wholeheartedly agrees with me.
( WormuIus, Thu 11 Sep 2008, 12:20, archived)