I just saw a thread where the OP has fallen ill and can't work today. She then writes:
OH has just slammed the door and walked out as he doesn't want to use savings to pay bills and now that I'm having a day off he has too.
Reading too = "as well", some posters were wondering why OH was also taking a day off.
OP then clarified that she meant has to = "needs to do that", ie in this case, he has to use savings.
I'm normally relaxed about others small errors, but it was interesting that this is one where the context didn't remove the (plausible) ambiguity.
Here's my challenge: can you create a sentence where an error like this would lead to a plausible incorrect interpretation. (So "let's eat grandma" doesn't count because no-one seriously thinks the writer is proposing cannibalism).