Never help strangers. Perhaps a selfish motto to live by, but one that might be adopted by a container truck driver who was hoodwinked by a pair of schemers in Kampong Speu on Saturday.

Police said the man was driving a container truck filled with new clothes for delivery when he spotted the duo on the side of the road, waving for him to stop.

Being a benevolent truckie, he pulled over to lend a hand and in return, one of the suspects pulled out a knife and demanded he open the container.

He shouted for help, attracting the attention of nearby police and scaring the would-be thieves into fleeing. Deum Ampil