Aye, but you know how it is. Bit too much on, or a wee bit has decided to take a wander off the side of the CPU, you find something to wipe it off with, and inevitably, at some point in the remainder of the PC build you accidentally jam the AS5 coated item in your mouth, in dire need of something to chew ferociously on to ease your nerves as you go through the "oh, I wonder what that sizzling noise was when I pressed the power button just there now" stage of the build.
Thought everyone done that?