stupid co-workers

This is so sad I had to share it. So a bunch of us guys are starting our day at work & doing the usual morning chit chat as we log in to our workstations. One of my co-workers, we'll just call him "Ivory" for this story is an albino. Ivory is a pretty cool guy & always good for a giggle. He was mentioning that he actually ran into another person who was albino while waiting in the line at Wawa this morning. He said he hasn't seen & didn't know many other people who were albino before he joked about being in some kind of secret albino club none of use knew of. We all kind of laughed knowing he was just teasing when another co-worker with a straight face asked for details about the club. We all kind of laughed & I guess he felt more stupid then usual because he got pretty upset. We felt bad & tried to comfort him by telling him that not realizing the secret underground albino gang was a only a joke was just an honest mistake & didn't make him dumb. He settled down a but & then said how was he supposed to know it was a joke anyway, it's not like he ever met anyone from Albania until "Ivory" got hired.