history: I want to try to eat sushi someday.  I am afraid I will get sick though. I want to try to eat sushi someday. Oh that's funny_comma_ I actually just had it for lunch today. I'd highly recommend it.
current: I want to but I am afraid I might get sick.
next: I think as long as you go to a trustable place (not a grocery store-style sushi joint) that makes it fresh and right in front of you, you'll be less likely to get sick (I never have).