A group of professors liked jokes, but got tired of hearing the same ones, so they started numbering them. So instead of telling a joke or funny observation when something happened, they'd say "112" and the others would laugh. or "64", more laughter.
One day they get a new prof on their team and after a few weeks of this number, laugh, number, laugh, during a meeting, the new guy says "-149". There's dead silence for a while. The eldest prof starts laughing, "i've never heard that one!"
