Person 1: "What if Dick Cheney was our substitute teacher for the day?"
Person 2: "That's... really unexpectable."

"The spanish inquisition; it's unexpectable."
Source: Nobody expect the spanish inquisition.

I had a memorable unexpection yesterday after my friend accidentally grazed my crotch with her hand.

idiot01: Dude, that ugly lady's face popping out like that was SO unexpected.
idiot02: Dude, you saying a word with more than three syllables is unexpected!

The Spanish Inquisition were unexpected

Ok, cool...I am a very unexpectational person.

Doesn't "expecting the unexpected" make the 'unexpected expected', and the 'expected unexpected?'