Thor: Ragnarok officially started filming today and to celebrate, the man himself, Chris Hemsworth, decided to play a prank on the film's director. 

What We Do In The Shadows director Taika Waititi is helming the third outing for the God of Thunder, following in the footsteps of Kenneth Branagh and Alan Taylor. However he might have tough time of it if his leading man keeps pulling pranks like this. 

Fans of the series will know that only one who is worthy is able to wield Thor's mythical hammer, Mjölnir so Waititi might have to wait until Hemsworth decides to have mercy and remove the hammer for him. 

Hopefully other members of the film's cast and crew will take pity on Waititi and let him use their facilities. 

Via Uproxx