Hey Bored,
I'm asking you to think before you post.
If you would take any aircraft on a four hour trip to Mexico (this time of year, spring break, full aircraft) with no lavs, then you deserve to be furloughed.
I've done it with two lavs mel'd it was not pretty even on a 2 1/2 hour flight. But all three? Use some common sense. Even my airline wouldn't (couldn't) dispatch like that.