Why There’s Always The Next Guy in Line in the Trades, How I lost my Job, Learn from this, Thoughts?

All right, so I lost my job today and I'm going to tell you guys how it happened. So it's a Sunday evening and I get a call from a gentleman. It's a snowstorm in New Jersey, guys. And he starts freaking out and he says his power to his fridge don't work anymore. And his boiler stopped working, so it's getting cold in his house. And he calls me panicking on the phone. He's saying, "I need an electrician right now. My food is going bad. My wife and kids have no heat. I'll pay $500, whatever the price." So, keep in mind it's a Sunday, cold as hell outside, snowy roads. So, I go, "Okay, sir. No problem. Let me call my office. I'll get right back to you." He goes, "Okay." And hangs up the phone. So, I call my brother. We're a small electrical company, right? Not many guys. I get an approval. So, 10 minutes goes by. I call. And by the time I call him back, the customer said he already found another electrician. What I'm trying to say is, guys, in business, it's always the next guy in line. Since I waited that 10 minutes to get back to him and instead of getting an answer right away, it caused me a loss of a job. Don't think you're the only fish in the sea because there's always going to be a hungry fish next in