Two situations that have made me laugh.

1. I landed in Singapore to meet Niels for the weekend and on the arrival card I had to put an address for the hotel.  However, Niels booked it and I didn’t have the details so I wrote “Hotel”.  I got to the immigration counter and the officer said that I needed an address, I said that I didn’t have an address.  I then pretended to look at my phone and I wrote “Marigold Hotel, Orchard Rd”.  The officer looked at it and let me proceed.  No Hotel named this exists.  When I saw Niels, all I could do was laugh.
2. I rented a motorbike in Da Nang and as security they asked for my passport.  I said that I needed it and so they asked what other documents I had.  I said a credit card and they said what about your drivers license.  I said, won’t I need that since I am hiring a motorbike and they said, you never get stopped, you will be fine.

I am sure that I will have many more of these incidents.