Sticking with the current theme of the thread I present a shot I've been sitting on a while, always debating if I should throw it up.
apeddle1982, on Flickr
These two lovely tourists rolled up in a tour bus of about 30 people. Paying no mind to anyone else already taking photos they walk 15-20 feet in front of me, plants themselves in front of my camera and start taking selfies of the Elk and mountains in the background.
Wasn't mad, had to laugh. Totally unaware and they just didn't care.