I've mentioned before that we have group presentations in my history of rock class. On Tuesday, the computer was acting up, so the professor ended up borrowing my laptop and hooking it up to the projector so other students could give their presentations.
While our professor was evaluating the last presentation, my screen saver popped up, which I'd forgotten about. So now the whole class knows my screen saver is a photo of Paul with Sgt. Pudsey, which caused a few giggles. 
parlance