The Myth: It’s possible to jump through a plate glass window and receive little more than a few scratches.
Seen In:Lethal Weapon, Boondock Saints: All Saint’s Day
The Reality: Diving through a window will hurt. A lot. The problem with chucking yourself through a sheet of glass, is that the glass is less yielding than you are.
The force of a flying body pushing down on the edge of a piece of glass would likely spell curtains, or at least some extremely serious laceration.
As you can see in the above clip, Gary Sinise ends up with his throat slit.
Mel Gibson is fine however, because he is heroic. The same happens in Lethal Weapon where he flies through another window unscathed. In real life, a willingness to fight the bad guys won’t prevent you from severing your jugular.