Your favorite April fools prank?

I enjoyed the companies who played April Fools Jokes.  Google.com with their Hoffness pictures, NetFlix did the roasting turkey.  I enjoy the fun in this stuff as long as its not harmful or disrespectful.

Well the best prank was pulled on me on my April Fools birthday. Yes, I've seen most of them but pranks that go wrong can be EPIC.

I was stationed on Adak and needed surgery. So it happened on my birthday. I was helped up later in the day by a nurse friend of mine. In those days you could smoke in hospitals. He helped me on with my bath robe, steered me out to the passageway and told me to take a couple laps around the ward. Just as I was gimping off, Rick brought me over to the wall and sprayed End Dust on my bathrobe and told me since I was so slow, might as well dust the walls. Rick got to laughing and flipped a cigarette ash my way. That's when we learned End Dust was flammable and I went up like a torch. Then the sprinkler above me started hosing me down. Then everyone and the fire department gathered around. Rick just said I needed to be put on suicide watch. Crap, another routine birthday.

I was evil and placed Nair into the soap dispenser.