Fuel pump running continuously after being parked for several hours

And you're hearing this fuel pump where I guess the car must be in a closed garage and you're sitting at a workbench doing something I mean the fuel pump is in the gas tank not quite in the middle of the car more to the rear of the car I can't really hear mine running and my old lady says I don't miss anything in the hearing department except when I don't want to hear something so I can't imagine you are hearing this fuel pump running that's that's got me going pretty good because I can't hear any of mine running even when I want to hear them car on ready gas stepped on engine running my ear at the filler neck with the door open and the cap off and or my head under the car and my ear against the fuel tank and even then barely can hear the denso electric fuel pump barely hearing at 5 ft from the car almost out of the question 10 ft not at all so that's pretty good we are talking the fuel pump in the tank or are we talking The crickets under the hood or some other nomenclature that I don't know about because fuel pumps on Toyota or anything but noisy generally speaking.

 

HOW do you KNOW it was the fuel pump, and not the brake booster?
WHY did you just let it run???
Did you not think to check it out and find out what was running? Then stop it?
Maybe a door was not closed all the way? Maybe a stuck relay????

 

Evap test after 4 hours of driving. Fuel pump can only be heard with back bench removed.