Is suicide similar to Nibbana?

I read a comment on this forum, which said: > **why do you even need to work hard attain Nibbana? Why not just commit suicide when things get tough?** This comment gives me the impression the writer believes there are some similarities between suicide & Nibbana. My questions: 1. What are the reasons why people equate suicide with Nibbana? 2. Why is Nibbana totally different to suicide?