It's monsoon, so what. What are you supposed to do - stay home ? I'd rather be there in the rain then in the oven of April & May. You're in a big-assed bus, not on a moto. Drivers are on the horn constantly and believe me people get out of the way (so don't forget the Ipod). Roads are new and good. All options are slightly dangerous. That's part of the fun. The boats go down from time to time and Ton Le Sap is chock full of crocodiles and poisonous sea snakes. Are you going to trust a domestic Cambodian Airline in a rainstorm ? You're not wrong, just exaggerating the danger IMO.