Randomizing without repeating the same word twice

[gilis]

Hi there!

Sorry for bothering the groups so often, but I just tackled a road
stone in my programming. Words are selected from an attribute which
contain 10 words and lied in a block that is nested in the main list.
The words are selected randomly in the block but the list run the
block 20 times (at list so I weighted the block in the main list
though it doesn't seem to run it 20 times, which is another
problem...) so it happen that the same word repeat itself twice (e.g.,
food, apple, juice, fork, spoon, orange, sandwich, beach, ocean,
river, river: in this instance river appeared last in the first time
the block was run and first in the second so it actually repeated
itself)  -how can I avoid that?

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