Has anyone shown this to Randall Munroe? How does this affect the calculations here?

It doesn't effect the operation of the pump and takes a three second poke and twist. With no legitimate use of the speaker it would be months before it is noticed. Think they would scrub through tens of thousands of interactions with the pump and find that one person who leaned in a bit? Doubtful, and if so, minor vandalism charge and a small fine for months of quiet peace. Worth it in my book.

For the pumps that the mute button doesn't work: carry a small screwdriver, 1/8", flat blade, insert into center of speaker then pull sideways to severe the coil wire.

How about you use your turn signal and move your ass. If everything is moving as it should, every milimeter of the box should be utilized. Track the movement of the other vehicles and move through. The cumulative time on an 8 hour drive waiting for some local chuckle fucks to finally go is insane.

One should be taking note of order of arrival to know your turn as you approach the intersection. Watch for changing circumstances. And when it is your turn, GO. There are way too many people that pull up to an intersection with absolutely no awareness then sit there way too long while everyone else that arrived after is waiting. Order isn't something negotiated with the other drivers. Take your turn as soon as it is your turn and I suspect there will be less impatient people trying to run you over.

And for fucks sake, pull up to the damn line. If you stop a car length back, then guess what, you still haven't arrived at the intersection and you get no turn.

Be certain your tap water isn't softened. Softened water contain an elevated amount of salt that is harmful to plants.