Incorrect : "Without further Adieu" : Adieu is farewell... without further farewell?
Correct: "Without further ado"
Incorrect: "Shear stupidity" : a shear is a scissor or a hedge trimmer. It is also a tool to cut the wool from a sheep. Now if one were referring silliness involved while tending to farm animals or hedges, it would be correct.
Correct: "Sheer stupidity"
Incorrect: "Rouge attack" : rouge is either a cosmetic or a color, unless one is referring the act of being assailed by cosmetics bearing communists, this is wrong.
Correct: Rogue attack"
Incorrect : "I should of done it" : whatever does this mean?
Correct: "I should have done it"
Go forth and sin no more.