I have a bubble and I hate when my bubble is invaded. When I'm sitting in the library... the empty, silent library... my bubble expands to a larger circumference than if I was waiting in line at the grocery store (don't get me started on THAT bubble).
A boy has sat down on the opposite side of my cubby desk. If I stretched my feet out, they would touch his. I don't play footsie with strangers. There are many, many, many open desks that have no one sitting on either side of the cubby.
He has unnecessarily popped my bubble. Now I'm crabby and bubble-less.