Y'know what really grinds my gears?

When you're going through a door to a business and people veer away from their own door to go through yours.  Okay, I sound like a frickin' lunatic.  Let me explain this more slowly.  Okay, so you're heading towards a business entrance that has several sets of double doors.  All doors go in both directions, not the kind where there are separate entrances and exits.  Someone else is on their way out.  They are heading for a different door.  You each reach your own respective doors, but then the other person sees you, makes a sudden and abrupt course correction, veers toward you, waits for you to pass the door to them, then goes through your door.  Is this making any sense?  Let me try again with a short comic.  I doodled this in a few seconds, so just pretend it looks good.

This is an overhead view.  There I am, heading towards door 3, on my way into the building.  The other guy is on his way out.

Now here we go.  We both reach our respective doors.  I get my hand on the grab bar of my door, he gets his hand on his.  The other guy already has his hand on his own door.  And then, wait for it....

Bam!  He sees me, and he suddenly and quickly lets go of his door, veers over to mine, awkwardly waits a couple seconds for me to go through, waits for me to hand him the door, (which I'm now obligated to do) then goes through...

WHY?????!!!!!

YOU WERE AT YOUR OWN DOOR!!  Why do you do that??!!  You had your hand on that door!  That's why they have multiple doors!!  So we can each use one at the same time!!!!  I go through mine, you go through yours.  What the hell is wrong with that?!!  Huh?!  Do you think it's easier to veer over to mine!!??  IT TOOK YOU LONGER!!!  It didn't save you time and energy!  It was pointless!!!  I can understand it if the arrival times are just right so you approach as I'm leaving, so I just hand you the door, but YOU WERE ALREADY OVER THERE GOING THROUGH YOUR OWN DOOOOOOOOOORRRR!!!!  Why do you have to veer over to me just because I'm there??!!  Oh, and the best part--the other guy will inevitably make an audible, abbreviated "whoops" type sound, indicated that he's made a mistake by starting to go through his own door, and he needs to immediately course correct to mine.  "Wup."  "Oop."  "Ohp".  WHHHHYYYYYY????!   AAAAARRRRRRGGGG!!!!!  MY HEAD A SPLODE!!!!

I know, I know, you're probably thinking, "What the hell is wrong with you?  Why does something so dumb and insignificant piss you off so much?  Why do you even care?"  Well, okay, you got me.  It is stupid, and I shouldn't care.  I don't know why I do, but of all the little, stupid, everyday things that annoy us, this one irritates me more than anything else.  And this isn't some rare fluke thing, either.  It happens CONSTANTLY.  Like, every time I go out.  Any time I go in or out of a business with multiple doors.  And I'm not talking about someone starting to go in the wrong way, like they're heading in the out door, and then they course correct.  NO.  I mean the doors that are all the same.  In fact, you know what?  This is rich.  You'll love this.  I was entering my gym, which has a designated IN and OUT door.  Clearly labeled: Entrance and Exit.  I'm going in the ENTRANCE, and the other dude is going out the EXIT.  Then the joker pulls this exact stunt.  "Wup," then veers over to mine and goes out the entrance door, the wrong door, just so he could grab the door from me and....what....be saved the 0.00000001 Joules of work required to open a FRICKIN DOOR?!  I'm sorry for the rant, but this one REALLY grinds my gears.  Just use your own damn door if you're already there.