In this side-splitting clip, a worker gets more than he bargained for when he tries to show off his speedy trailer-opening skills.

As he eagerly swings open both doors of the trailer, a box falls and hits him square in the face, sending him crashing to the ground.

"He was at work and likes to video himself opening the trucks to see how fast he can open them," the video owner, Sophie Vaughan, told WooGlobe. "He then opened it and got hit by a box and fell on the floor."

Ouch, talk about a "knockout" performance!

This video proves that sometimes, it's best to take things slow and steady, especially when it comes to opening trailers.

Location: Rugby, UK
WooGlobe Ref : WGA532438
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