The best way to prevent that meta-game is to simply not allow a second check.
This is the heart of my earlier proposal, more clearly expressed.
The best way to prevent that meta-game is to simply not allow a second check.
Assuming a lack of time pressure, why wouldn't you keep trying to find a trap? I just presume, again assuming a lack of time pressure, that why wouldn't you take 20? Yes, I know they don't technically have "Take 20" with 5e, but, there's nothing stopping a player from rolling five or six times in a row.
Depending on how you emphasis the words, "you don't think it's trapped," actually works better. It means that they didn't find anything, but cannot EVER be sure. I use this every single time, even with high rolls with no trap, just to keep player's on their toes.
The best way to prevent that meta-game is to simply not allow a second check. If they search again, there is no roll and receive the same information (unless something has significantly changed). As you've pointed out in the past, player's don't call for rolls, only the DM does.
Assuming a lack of time pressure, why wouldn't you keep trying to find a trap? I just presume, again assuming a lack of time pressure, that why wouldn't you take 20? Yes, I know they don't technically have "Take 20" with 5e, but, there's nothing stopping a player from rolling five or six times in a row.
Assuming a lack of time pressure, why wouldn't you keep trying to find a trap? I just presume, again assuming a lack of time pressure, that why wouldn't you take 20? Yes, I know they don't technically have "Take 20" with 5e, but, there's nothing stopping a player from rolling five or six times in a row.
Sure there is. The DM.
A skill check represents the best efforts under the current circumstances. If they gain higher skill then they can try again. Just rolling endlessly until they get a 20 is a waste of time. Why bother with skills? At that point just say X time goes by and they find whatever.
Aside from table boredom. If I set up a situation wherein the players can essentially "take a 20" I'm not even going to bother having them roll, but I will expect them to role it. Take 20 situations shouldn't even exist. Either the situation needs to be rolled for, or it can be skipped and covered in exposition. There's no point in using dice if you're not going to roll them.