wow! is this a new one on me.
It will never happen in my house, trust me, but whoa,...never thought of having to have boundaries and rules regarding, "my fabrics versus your fabrics...go cut your own" :shock:
Since you do have this problem, I think you are taking it far better than I would...
Alternating rows with different designs, colors of the white, sounds like a winner to me.
Threaten to take all his needles (including the one in his machine), and scissors/rotaries away...and no quilting shows or magazines for you, young man, - for a while! :evil: :XD: