One night a blonde walked into a bar. She sat down and shouted "I swear, we had so much fun last night." She got a beer and then began to chant, "51 days, 51 days, 51 days."
Then another blonde walked in. She said the same thing and began to chant along with the other.
Finally another blonde came in with the same frame of mind. She chanted right along. "51 days, 51 days, 51days."
The bartender asked, "Why in the hell do you 3 keep saying 51 days?" The blondes replied, "Because we bought one of those puzzles that say 2-3 years and we finished it in 51 days!"