This clown prank is both dangerous and extremely terrifying

Scary: Do not try this at home
Scary: Do not try this at home

If you have a phobia of clowns it may be best to sit this one out.

DM Prank Productions are an Italian duo who create social experiments and extreme pranks, and film them for kicks. The latest is one of the latter. 

They spent more than 20 hours waiting for 'victims', the hammer weighs a hefty 16 kilos and one of their subjects is so terrified he actually pulls a knife. 

This prank is not only terrifying but very dangerous and I wouldn't recommend anybody emulating it.