I proposed an idea to speak at Webtech in Munich, so I travelled domestically to speak. The event gave me a free ticket. My travel and accommodation was fully covered by the event. My employer paid some of my travel expenses, and I was working while speaking at the event. It took me 5 days to prepare for my 60 minutes speaking slot, and I had a great time. I'm a man who has been speaking for 6 years. This was a for profit event.