From my experience in High School, in short yard situations when the QB sneak came I would always fake an injury, because they would be concentrating on me yelling in agony saying I am hurt, and I would inch the ball closer to get as many yards as possible. Cheap...but you play to win the game. Sometimes you gotta do whatever it takes barring physical injury not during the whistle.
I've got a nice little QB sneak story.
So I played football only 2 years in High School. I played my freshman year as a RT on offense. Then I grew taller, stronger, and leaner, and became a TE for my senior year. I played golf in between those years.
Well, during my freshman year, our center on our team's name with Chase. So we had an audible called "blue Chase" which was a QB sneak. We called it a few times my freshman year. So then I come back and I'm starting varsity (our HS team is usually very good, but that's another story). Well, our starting RB came from Virginia his junior year (we are in Illinois).
So we are at the #2 team in state's place on their homecoming game. Up 20-7 in the 3rd and trying to put the game away and stun the state. So we line up with an off tackle run call running up my rear, except they stacked my gap. So our QB calls out "BLUE CHASE! BLUE CHASE!". Funny thing is I knew what he was talking about from 3 years ago, as did EVERYONE else on our offense (which hadn't changed beside me coming back, and the RB from Virginina).
So our QB screams out the blue chase audible and everyone understood it, except for dumbass Virginian RB. So he stands up and yells "WHAT THE F*CK IS BLUE CHASE?!" and the other team starts laughing. So our QB turns around and tells him to just take a 3 point stance. We snap it, bulldoze for 2 yards, ice the game, stun the state, and went on to the playoffs (where we lost to #1 in state)...
But "What the f*ck is blue Chase" became our motto on all of our football gear. You see across the top of our hoodies "What the %$@* is Blue Chase?" with our names and record. Hilarious stuff.