embarras d'eggcorn

[Laurence Horn]

This is a recent posting from a cancer e-mail list, in reference to a
projected therapy protocol:

--- begin forwarded text

Thanks for the saga advise.  I will take you words to treatment with
me tomorrow.  I'm sure it will be a roll-a-coaster, but I don't
intend to let it throw me off.

Again, my thanks.

--- end forwarded text

The "saga" is quite possibly a typo, the "advise" a simple
misspelling that I suspect I've encountered in students' papers.  But
the "roll-a-coaster" is the interesting one, and not novel or unique
to this writer.  Google has 411 hits, some literal, some 'emotional'.

Larry