Puting 12 words in the correct order is EXTREMELY more easy than guessing 12 words from BIP39 an puting them in the correct order.
I mean, let me give you 12 words (A,B,C,...,L). Then you have 479001600 possible combinations.
However BIP39 consists of 2048 words. So, If you want to guess 12 words out of the 2048 and try to arrange them in the correct order gives you a huge amount of possible combinations. It's a huge number!!!
Just don't (I repeat, DON'T) ever think of letting someone know your words even if the order is incorrect.