thanks for the great reply!

to put it briefly, I only have to worry about my opponent having a set of
Queens when I have AQ (or a set of Aces when I have AK) only 6.25% of the time..., right?

My point is that when you have AK and the board comes: A 9 2 rainbow or when any Ace flops with no real draw out there or a pair on the flop with the Ace, etc., you pretty much HAVE to assume you have the best hand AND I'd even go so far as to say it's mandatory that you show the hand down when Heads Up.

Is this correct???

The only way I can see getting away from this hand is folding to a Turn raise...
And even this seems pretty tight to me...(to fold with Top pair Top kicker with no draw present)
So I'll re-phrase...
the
only way I could see folding a hand this strong (having AQ and flopping a Q x x rainbow (non-connecting and no pair on the board) or doing he same with AK - flopping an A x x board " " "...
is if a
very TIGHT-wad rock raises you on the turn...

You also mentioned 1 in 22...this is 4.54% correct?
So, the answer is "it" happens
between 4.54 and 6.25% of the time, which to me is not often enough to merit worrying about.

Anyone else have any thoughts? Should I just chalk it up to bad luck when I take these hits, or is
there a way to limit my losses when my opponent flops a big set/a set?