My own DM nightmare

So reading a few stories here I figured I'd share my personal experience with my 'that guy' DM

We were playing the Warhammer 40k RPG system, it was my first venture into tabletop RPGs of any kind. My two friends had played a short while but my DM was a man who routinely boasted about his 2+ decades of experience DMing so I figured I was in safe hands

The char creation starts by me asking if I would be hindered by playing a human while my two teammates were playing space marines and was assured it would be no issue.

What was prevalent throughout session 1 and every session after was that most NPCs all seemed to have the same attitude "We don't acknowledge humans. We'll ignore you any time you speak. We only speak to space marines". Alright, fair enough.

So after a couple of months I decide I'm bored of this and reroll to a space marine. Joyousness is had as my very first npc encounter contains dialogue where I'm begrudgingly spoken to and my input is heard!

Now up to this point he's not been too bad. A little frustrating at points but tame. Until I decide I want a pair of minions. I double check with him before hand and he's happy to have minions in the game.

First session with my two buddies. 5 minutes in.
"As you walk down this dark alley you here a *Snick*. As you turn you find one of your minions on the floor. Dead"

"What. Just. Dead?"

"Yep"

"No way to react or save them or anything?"

"Nope"

Well now. In this system you gotta spend xp to get these minions. So I'm a little murked but I continue. We proceed through a factory and as we reach bbeg's room I tell my last minion to wait outside. Play it safe. Round a corner

Combat begins. Turn 1
"The BBEG runs past you all. Taking 3 attacks of opportunity"
Odd. He's a cocky guy. He wouldn't flee
"And walks out the door and attacks your minion. Hitting it. Dealing enough damage to kill it. He's dead"

.....

I sat there with a look of disbelief. My friends sniggered. I didn't know how to process this so I just. Carried on. Thinking this would be the worst of it.

Over the next few sessions I started to notice. My guy got hit. A lot. Infact, over 8 sessions I'd yet to be missed by an attack. As the campaign naturally came to it's conclusion and we were packing up I sort of off handedly mentioned that I got hit more often than I'd of thought

"Oh yeah I didn't even roll to hit you. I just decided your character was too OP so made every attack autohit you"

My friends can't understand why I never went to one of his games again.

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