Things a character would not have wanted to be caught doing

[Eruwen]

Merry thinking about Pippin think about Sam thinking about Frodo thinking about Pippin not thinking about food

Whoa. Let me see...

Merry thinking about Pippin...thinking about...Sam who is thinking about Frodo.....

Whoa. That is way too confusing. I'm not even going to try and think about that one.
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Anyway, how about:

*Treebeard rolling other trees at Halloween.