People who lick their fingers...
...before turning pages in a book, turning over sheets of paper etc. Ewwwwwww! The spunkfoot who used to sit opposite me at work seemed to have to put his first two fingers to his lips before touching *any* piece of paper, which used to do my head in.
(Vice Admiral Sir Charles Cockbrush KCB MBE DSO, who is finding it increasingly difficult to log into b3ta.com wants to duck your aunt and kick your puppy, Tue 6 May 2008, 17:02, 1 reply)

My ex
also did this. But he compounded his crime by pulling his bottom lip down as he did it, thereby producing an immensely irritating *pop* each time. ARGH!!!!!
(Moniker, Tue 6 May 2008, 17:32, closed)