Parkour: A sport or athletic activity in which the participant seeks to move quickly and fluidly through an area, often an urban locale, by surmounting obstacles such as walls and railings and leaping across open spaces, as in a stairwell or between buildings.
Agreed!, my mate is always jumping over stuff. and one day he jumped from a building to some wall thing and when he jumped he landed on the wall thing but it went thought and he was like stuck. it was so funny but very painfull for him.
We got him out but he has marks all around him and you know what he did the next day... Fixed the hole and tryed it again.