The coolest project I was ever involved on, was when we signed a client in Namibia (we were a South African based company). So I was flown to Namibia for 2 weeks to train the clients etc. I spent about 4 days training the client and I had no more work to do. So the client took me out around town and we drank so much on his tab! He even gave me a bottle of Johnnie Walker Blue, because he doesnt drink Whiskey! The best part of it, apart from exploring their awesome country and pubs, was Mad Max 4 was being filmed in my town, and my client took me to see the yard where all the vehicles and props were situated, because he owned that property! So all in all, it was more of a paid holiday than anything else!