... or horrors as the case may be

So just following on from Irish GrumPy's post and the following comment from splinter
theres a gal in work who im sure i've come accross online before.. (no pun intended)
Obviously everyone has done their fair share of pron surfing, some more than others! I've done my fair share but in all my time of surfing I've never recognised anyone I know.
So, has anyone recognised someone they know? Was it a total surprise/shock? Every time you now walk past them does the side of your mouth curl up and you give that "I know" look?