Modern day archaeology: City Hall workers find beer cans hidden in the '50s.
"(The vice president of The Christman Company of Lansing, the general contractor for the 1950s project) said he suspects crews ended their work shifts with a few brewskies - a decision that would get a frosty reaction today."
Uh-huh, I've never heard of a construction worker in this century drinking on the job.
(via obscurestore, my favorite source for news.)