Arnold Schwarzenegger is so buff he didn't realize somebody dropkicked him

For a 71-year-old, Arnold Schwarzenegger is still pretty damn built.
While attending a jump rope competition in Johannesburg, South Africa, the former body pro bodybuilder, actor, and governor of California was dropkicked in the back by an unidentified attacker while he was in the middle of filming a video for his Snapchat account.
Now, most people would've turned around to see WTF hit them, but not Schwarzenegger. The guy's so buff he didn't even realize someone had dropkicked him at first.
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