the itchy scratchies are completely unpredictable. I have several days of grinding on the boat. I have even hung upside down in the bilge laying in glass dust grinding over my head and not an itch. Today I grind for 2 minutes getting ready to fair the fill job on the old stereo cutout and the itchy scratchies got up on me faster than Reggie on a gold chain. Go figure......

It's like sleeping with a chic that forgot to shave her legs...You'll get used to it....

I am, well have been pretty much immune. as a little kid my dad bought a full roll and left the box outside. Hot summer day, just wearing shorts, look at the big box to play in!! since then the itchy scratchys really don't bother me until yesterday.