Well, one time, a fellow student of mine was running late to class. As she reached the edge of the building, she saw her professor making it to the front steps (super long rectangular building here). He looks up from walking and he sees her. He then points to his watch, gives her a well-meaning “Look who’s late” face, and walks on inside.

What he didn’t know, though, was that this particular student was like freakishly good at bouldering and related climbing skills, so she was just like “Fuck it” and SCALED THE BUILDING!

She tapped on the window of the 4th floor classroom (the floors had like 20ft ceilings, so, she was quite a ways up there), nearly making one student piss himself. They opened the window, she rolled through, onto the floor, and slid into her seat about five seconds before the professor opened the door to the classroom. 

Escape