Of course they cannot take over the house painting business! You did not invented any of paint, brushes, ladders or walls. If, on the other hand, your painting

Of course they cannot take over the house painting business! You did not invented any of paint, brushes, ladders or walls. If, on the other hand, your painting business is about creating works of art rather than home improvement... they will leave you alone until some magazine labels you as "the next Picasso" or something. Then they come and sue you into oblivion, since they will out-spend you 50x in court, regardless of who is "right".