I needed a new gas can for our lawnmower today and discovered that you practically need an engineering degree to figure out how to use it, much less how to set up the cap, spout and locking mechanism before you can even use it.
I went to 4 places and no one carried any other type but the Briggs and Stratton gas can. Finally I gave up and asked the clerk at one of the auto parts stores in Collinsville to show me how to do this. Ha. Even she had a hard time and finally told me that it might be easiest to just remove the cap and spout and pour it in the mower without all that. Maybe use a funnel.
All the parts to the spout, and I do mean all-plural, are tucked into the can upside down from the way you'll actually use it. I bought the darn thing, but I know I'll be doing the funnel thing because the "Smart-Fill" can is just to smart for me.
I'd love it if companies would just go back to cans with a spout and a cap.