Quinton de Kock Is Completely Terrified by Dale Steyn's Prank

For a moment, South African wicketkeeper Quinton de Kock was completely terrified of team-mate Dale Steyn

And maybe rightfully? 

De Kock made a catch for himself and in the process called off Steyn, who is 10 years De Kock's senior. 

Steyn decided to playfully pretend like he was angry with De Kock for the move, and the result scared the you-know-what out of De Kock

Then they hugged things out and things were OK again, except for De Kock's brief moment of absolute terror. 

[Vine, Derek Alberts, h/t SB Nation]