There are people who think that its okay to not completely hide your seeds if you remember the way they are ordered but this small experiment makes it pretty clear that one should be more cautious.
No one should consider scrambling their seeds as a way of keeping it away from Intruders, you can forget the actual order and can lose your bitcoins, especially if it's a 24 word seed phrase.
The essence of back ups is the safety of the location which should be as covert as possible to evade detection. If one location does not prove enough then one should consider using more than one location with a multi sig wallet and storing them differently. One getting compromised does not result in loss of funds.
An additional seedphrase which you can store separately is also a good alternative to scrambling the seed phrase.
For BIP-39 compliant wallets, adding a "25th word", which is actually a secret passphrase, in your seed would increase the security of your wallet exceedingly. Make it alpha-numeric, and with symbols included. Plus if a hacker gets your seed words, he/she would have access to a different wallet/address space than the wallet with the added "25th word", with the address space where your Bitcoin is HODLed.