1. Don't splash someone holding an infant. Squirting with a little squirtgun is enough in this case, a bowlful of water in a baby's face makes you a splashhole.
2. Don't splash someone riding a bike with a truck driving behind them. You probably don't want to actually be responsible for someone's death and see them get run over by a truck in front of your very eyes. Again, excellent time for the squirtgun. Killer is worse than splashhole.
3. This one is hotly debated, but I am firm on this one: Don't splash someone if they are talking on their phone. This is mean. I would cry actual tears if my phone got wrecked. Come on.
4. Don't splash a kid who is sobbing. Despite talking about it for weeks, when it
came time to really play, it took both my boys a bit of time to warm up to the craziness. Eventually they were having a blast, but both were sobbing at the first direct splash to the face. And the next 25 splashes to the face really didn't help.
Since Songkran is all about having fun, this simple question should guide you: will this splash make anyone miserable for an extended period of time?
Splashed baby? Yes! Both the infant and the parent will be miserable as he screams all the way home, through an outfit change, and another half hour or so for good measure.
Crushed biker? Safe to say several people will be miserable (including yourself) not to mention the dead person.
Wrecked phone? Yes, that would be miserable.
Overwhelmed kid? I can testify, that that was miserable for quite a while.
The streets are packed with people who've come out to play. No need to seek out the ones who are trying to stay dry. The thing is, holiday-makers-wouldn't this be common sense if we were in all of our home countries?