I'm a little confused what you mean by scrapping. Are they playing or actually more like escalating into a fight? Doodlebug is my little instigator and loves to cause a little commotion but it is very rarely become an actual fight. When I say rarely it might happen once every several months that there is any type of issue. They can get very loud while playing~is this what is happening? Or is it an aggressive fight where one ends of being submissive and on their back? I would be very careful if it is the later of these scenarios.
If there have been fights while they are together and you are home I would not leave them home alone where they would be confined together. It would concern me that if they did scrap while you were not there to stop it before things got out of hand that you might come home to a injured pup.
Also, I would suggest if this is more than play that you look for triggers in their behavior and start to divert they attention prior to it happening.
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