I’ve always thought that the ability to stare down adversity in business — or turning lemons into lemonade, as a former boss of mine used to say — is a critical part of being a mature professional. We had a prime example of this a couple weeks ago at Return Path. We had scheduled a webinar on email deliverability, a critical topic for our market, and the moment of the webinar had come, with over 100 clients and prospects on the line for the audio and web conference. There was a major technical glitch with our provider, Webex (no link for you, Webex), and after 5 or 10 minutes, we had to cancel the webinar — telling all 100 members…