Since we were discussing the Long Branch / Flower Avenue areas I was looking into the Flower Theatre and came across this wonderful reminiscence posted in the comments section for the theatre's entry at the Cinema Treasures website. I have no idea if this is true, although I am of course incredibly skeptical. Why would someone make this up, though?
In about 1967 or 1968, one of the backs on the chairs was missing. Little Kenny Armstrong was the unfortunate child that sat down, leaned back and his head became stuck on the glue of the seat. He was with his brother Michael Armstrong, Terry Veal, Frank Swank, Bit O'Haver, and Jack McCown observed usher Sylvester Stone [sic]-- with a chip on his shoulder and a bully at heart--- grabbed Kenny and tore his scalp off the chair. There was so much blood involved that we freaked out and the five of us swarmed over Sylvester Stallone and beat him so badly he never spoke correctly again. At the time, we all were only 12 or 13-years-old. What I remember most about that day was the 3/4 length red coat with brass buttons and gold trim that was the uniform of the ushers.I particularly like the last sentence.
Note that he initially calls him Sylvester Stone. Stallone did live in Silver Spring for a while, but based on the dates provided, he would have been about 21 at the time. Did a bunch of 12-year-olds issue a whoopin' that gave Rocky a speech impediment? Doubtful, but the story is bizarre nonetheless.
Note: according to Total Rocky, "His speech impediment was caused at birth when inept use of forceps paralyzed the left side of his tongue and mouth."