I saw this young man in the Al Quds Demonstration who was giving away flyers about promoting Iranian Rugs among demonstrators!
In one hand he had the Palestinan Flag, and in other hand he had the leaflets of Qaem Rugs.

Opportunism or "opportunistic behavior" is an important concept in such fields as biology, transaction cost economics, game theory, ethics, psychology, sociology and politics.

en.wikipedia.org/wiki/Opportunism