As long as we are nitpicking: That phrase structure exists to contextualize a timeframe, not introduce a topic. In the same way you could say, &quot;back in my days as a sommelier-in-training, we used to make jokes about people who would keep swallowing the wine and get a little bit too buzzed to go completely under the radar&quot;. Now, that isn&#x27;t an element of sommelier training, the making jokes, or the getting drunk. But it gives you enough context to understand how the other (different but extremely related) events happened.