MoBOB, you had to show the ID because the HEET is an often abused product. It is commonly used in the production of Methamphetamine. Some areas are becoming very restrictive on the sale, especially in warmer climates. There are several other items on the LEO watch list also. In my area, the possession of several bottles of HEET (usually more than 6), and a high index of suspicion, is all that is needed for LEO to obtain a search warrant.