Construction workers were just playcating to the crowd around them for fear of ass-whoopin for being WWIBN.
You see this tactic by Whites nowadays when a black person enters an area, the weak minded low self esteem white will suddenly have ebonics down pat and all the mannerism of a black person.
Construction workers alleged account differs from actual Ferguson residence who were taped recorded talking how Brown attacked cop etc. basically verified cops story.