Hey Mikael !
hmmm.....interesting - seems to me that in future after strong rain you will have mud-dogs covered with wood shavings as camouflage...
??? ( Please send a picture !)
No, seriously now - I think this is good idea for preventing the dogs turning into a species of tasmanian dirt- devils after rain...
And by the way - think you made really fine kennelyard !
So i tell it again -in my next life i want to have reservation for becoming dog at your place----
Best greetings from Silvester / Germany