Useful device

Spring check valve.

Best for theives

Ah no, I love to drink a little bit before it starts to pump down. And cough and split like I hate it

I was so confused at first. But that’s awesome

Saves you getting a mouthful of fuel...

Let's try that with diodes and electricity.

We used to call those a “Mexican credit card”

If I was a gas thief. Next question.

Shaker siphon $10 on Amazon

They have been around forever. When I was a kid we called them the Kentucky credit card.