This stuff always seem strange to me. We had a bar at the office. We used to drink at the bar. That's the point of a bar.

And because we were engineers we'd sometimes work past six on a Friday when others are at the bar. Sometimes I'd go have a beer with them and then go back to write some code because something struck me.

Sure I drank 'on the job'. That's part of why software engineering is fun. I get to do my job with these things included.