Me counted 3 only... (until I saw the answer... )
6Fs for me too
eat. drink. shoot
OF = Out of Focus.
I counted 3
And I counted again and I got 3
Then I saw OF mentioned and I counted again and got 6.
There are 6 F's in the sentence. One of average intelligence finds 3 of them. If you spotted 4, you're above average. To see 5 is rare. If you caught 6, you are a genius. There is no catch. Most people forget the OFs. The human brain tends to see them as Vs instead of F's.
I saw 9, but my spelling ifn't very good.
Time, is an effortless construction :)