The Royals and Blue Jays haven't have trouble with Rogers Centre fans throwing trash on the field during the ALCS in like the players did earlier in the playoffs. Still, some Royals players were ready to protect themselves from flying objects in case anyone in the crowd during Games 3 and 4 decided to act on their displeasure and rain something down upon them.
Kevin McGannon noticed this, when Alcides Escobar was hit by a pitch on his knuckles in the second inning, but only awarded first base after a video review. When the call was overturned, fans booed loudly, Jeremy Guthrie and Paulo Orlando covered their heads in mock anticipation of being pelted. Johnny Cueto jumped up and down, and others pointed but no foreign objects came.

Here's a full look at the scene. You'll have to keep an eye peeled -- for the players in the dugout, if not for falling objects:
That's not to say there weren't isolated incidents of objects actually being thrown. During Game 3, this reportedly happened:
Can't tell what was just thrown on field from upper deck, but it almost hit a cop and Volquez, Butera and K. Morales pointed to the perp
— Vahe Gregorian (@vgregorian) October 20, 2015
Later on, Vahe Gregorian of the Kansas City Star followed up:
Drew Butera, who was a few feet away, believes object thrown from 500 level last night that just missed Toronto policeman was a green pepper
— Vahe Gregorian (@vgregorian) October 20, 2015
That's just ridiculous. Everybody knows there have been signs at every ballpark, time immemorial, that "No pepper" is allowed.