Quick stopover in Bangkok

We left Cambodia on Friday morning on a long bus journey to Bangkok. The ride to the Cambodian border was good and leaving Cambodia was fine too. Then we had to literally cross the border, on foot and go through to Thailand and then jump in a minibus. There were about 40 of us going to Bangkok, but we got separated after the border to fit into these little buses. There's 13 seats in these and the driver, but that leaves no space for luggage. Colin and I were the last 2 to be called to one of the buses, but when I saw how packed it was I was convinced that we wouldn't fit on there and so didn't want them putting my bags in until I knew for sure it would be our bus. The guy got annoyed with me and told me that I have no choice, either I climb in the bus or I stay at the border. We did all get on, but Colin and I had to share one and a bit seats for about 5 hours and Colin had the luggage digging into his side. It was not a pleasant drive, especially in the heat, but we did arrive safely.
We really only went to Bangkok to get to Chiang Mai, as we're going back to Bangkok in a few weeks for Christmas, but thought we'd use the time to explore the Khao San Road area and parts of the old city. We were walking around when we heard a band and saw all the Thai people standing to attention. I had read that the national anthem gets played a few times a day and that the locals stop what they're doing and stand to attention and that it is respectable if you're a tourist to also stand to attention. So we did stop walking and had a few people looking at us, amused that we knew what to do. They're so patriotic, it's wonderful!
For dinner we both ordered Pad Thai... Colin said the one I make is better and I thought so too, but didn't want to be the first to say it myself.
We'd had enough of the buses, so booked an overnight train to Chiang Mai. A taxi took us to the train station and I thought I'd share the amusing "what not to do" sign on the window.