Yeah, that's true for pretty much any hobby too (once you get past the fun intro stuff).

Remember rushing a job in humid weather and the mix never set right? We had to scrape off three bays the next morning. It cost us two days of labor and a pissed-off client. Now I watch the mix like a hawk, even if the crew grumbles about downtime. What's the longest you've had to wait for a mix to be ready, and did it save your skin?

Once took a wrong turn on what was supposed to be a quick evening hike. Spent two hours chatting with a park ranger about local rocks, totally forgot about my inbox.