Tbh I don't quite see the need for the dummy spitting. 
His barber has trimmed off some hairs from his eyebrows that were long enough to peek through the teeth of a comb. Long enough to warrant not being there then, unless thick, lustrous inch long eyebrows are somehow the ultimate symbol of masculinity. 
Maybe if the barber had strapped him down, plucked, shaped and tinted his eyebrows into a delicate arch he may have cause to throw the teddy out of the cot.
How what has happened makes him rage because he looks like a 'tarty boy' when in reality he will look no different is beyond me.