What April Fools jokes has Tool played on us over the years?

Was it last year they "released a new song" on April Fools, and it ended up being some hilarious mariachi song?

I remember back in the day TDN announced a "listening party" for the new album (I think it was Lateralus at the time). Each member would go to a venue in a different part of the globe, and if you were in the area, you could listen to the album before release. I remember the comment section had people furious who drove for hours before realizing it was a joke.

I also remember Maynard quit the band one year because he found Jesus.

What other pranks have they pulled?