Uhhh.... You're right?

Nothing funnier when hearing the players come up with the right solution right away and then immediately dismissing it.

Or my party, struggling with unlocked doors.
DM (later): "all you had to do was turn the fucking knob"
- Are you one of those "how would you open the door?" kind of DM when players encounter an unlocked door and said they "open the door"?
  Stop wasting everyone's time. When players said "we try to open the door", just say "it's unlocked and the door open" and move on. Stop the "you didn't say you turning the knob" bullshit. Do I have to describe I'm breathing every 2 seconds, too?
- I had a DM once, and they made a weird lake in the middle of the room that we were trying to pass through.
  turns out, the lake was full of fish. specifically, herring. more specifically, they were red herring. boy, did we feel stupid after 20 minutes of that nonsense.
- How exactly does that happen? Aren't most doors unlocked?
  Though in all fairness, the one time I played D&D we spent like 20 minutes working out how to go through some small hole 70 feet up in the roof, before deciding to just go through the door that we all knew was there and unlocked.
- I fucking love that the main Nemesis of the original Vox Machina was..doors 😂
- Party once used a chime of opening after spending 20 minutes trying to open a door they had found the key to 5 minutes before.
  I'm starting to think any ouzzle solved by looking at your inventory may just be asking too much.
Every fucking time.
Also with the justification: The DM wouldn't think that way.
I have layers dammit!

My favorite thing about being the GM is that sometimes you can just pretend you were going for the really cool thing your players just came up with all along.

Its one of the few wholesome times to take credit for someone elses idea and use/abuse it. Those are the stories to tell your players after the campaign is over.. hey guys so you remember when...... I had to throw out everything i prepared and make it up on the fly. Glad you allmgad a good time

"You see a warehouse in the distance"

"Is that like a Werewolf?"

"It is now! You are underleveled and overfucked!"

ED: You see a well groomed garden. In the middle, on a small hill, you see a gazebo.
ERIC: A gazebo? What color is it?
ED: [pause] It's white, Eric.
ERIC: How far away is it?
ED: About 50 yards.
ERIC: How big is it?
ED: [pause] It's about 30 ft across, 15 ft high, with a pointed top.
ERIC: I use my sword to detect good on it.
ED: It's not good, Eric. It's a gazebo.
ERIC: [pause] I call out to it.
ED: It won't answer. It's a gazebo.
ERIC: [pause] I sheathe my sword and draw my bow and arrows. Does it respond in any way?
ED: No, Eric, it's a gazebo!
ERIC: I shoot it with my bow. [roll to hit] What happened?
ED: There is now a gazebo with an arrow sticking out of it.
ERIC: [pause] Wasn't it wounded?
ED: OF COURSE NOT, ERIC! IT'S A GAZEBO!
ERIC: [whimper] But that was a +3 arrow!
ED: It's a gazebo, Eric, a GAZEBO! If you really want to try to destroy it, you could try to chop it with an axe, I suppose, or you could try to burn it, but I don't know why anybody would even try. It's a @#$%!! gazebo!
ERIC: [long pause. He has no axe or fire spells.] I run away.
ED: [thoroughly frustrated] It's too late. You've awakened the gazebo. It catches you and eats you.
ERIC: [reaching for his dice] Maybe I'll roll up a fire-using mage so I can avenge my Paladin.

I had a DM who set up a puzzle room, tiles on the floor with arrow traps. It ended up being the fibonacci sequence however, it started like, 15 digets in and none of us players knew which were correct. (didn't wanna meta game and google it) So we just Dex rolled across the whole floor and were super wounded after. The next room over was a boss fight -_-

We probably weren't supposed to be so wounded going in.