An incident like this happens a lot when I roleplay, which is why I no longer make these puzzles despite enjoying solving them when they come. One example is when I have the only door of a relatively small dungeon room locked by a gate, with half the party on one end (outside), the other half of the party on the other end (trapped inside) and
one of the players, who was a beast master of cute critters,
had a pet cat who was fighting with another, larger monster over a
doll where their fights were heavily focused on with the intent to hint that the door is unlocked and can be pushed open whenever the doll's head fell off, but locks if the doll's head is reattached. The door is
nigh indestructible to ''
anything'', and the parties are quick to notice that no matter what attack they throw, no matter how powerful the attack is, it won't leave so much as a dent because the dungeon "cell" was mentioned to be specifically designed to hold incredibly powerful god-like monsters (which explains why travelers, who have an eighth of said god-mon's powers, couldn't do anything to it). What do they do? They spend half of one week nuking the door to high hell, alternating on who nukes the door to high hell between inside and outside (all the while that tamer's cat kept stealing the doll, but was perfectly content to make its master hug it as opposed to allowing the other mon to take its head off if not do so itself), the other half to spam attacks for as long as possible, and nearly half of a second week was spent nearly causing a cave-in for the party inside the dungeon trying to blast the surrounding walls to get around the door, only to find ''even more of the indestructible barred walls was built within the surrounding dungeon walls''.
Because, of course, they figured people who want to trap powerful gods inside what essentially is a giant cage would only bother building an indestructible door and won't take into account said god can blast the rest of the cell to break free. (As for the doll, the tamer got annoyed and tried to kill the other monster who kept trying to grab for the doll's head. Eventually I got the monster to be so agitated it ripped the doll's head off while the tamer was holding it despite getting attacked by the cat for it). It took them so long to realize that the doll had something to do with the door that I not only had to solve the connection in front of them myself, but push the door open afterward to let them go (because even when they attacked during a time the doll lost its head, they were attacking the surrounding walls they unearthed as opposed to the door, and it didn't occur to any of them that the door was unlocked until the monster blatantly opened it to walk through. ''TWICE''.).
*HEADDESK* *HEADDESK* *HEADDESK*.