Let this be a lesson to all budding pitch invaders out there: If you're going to irritate a stadium full of people by charging into the middle of a game, then you best be willing to COMMIT.
In fact, you could do worse than take a few pointers from the guy who interrupted Real Madrid's friendly against Fiorentina in Warsaw on Saturday night.
Dressed head to toe in a "Cristiano Ronaldo" kit, the encroaching stranger hurtled into the middle of the Real Madrid penalty area, where he proceeded to mill around with a super serious look of intent on his face as "his" team prepared to defend a Fiorentina corner kick!
"Psst, Karim. You watch near post, I'll mark Savic."
Now that's some impressive commitment to the bit!
Speaking of unexpected interruptions, it seems today was a good day for pitch invaders going above and beyond in the line of duty: