"I already tested your clothing; it doesn't dispel my magical hand on contact."  A brief light pressure, through Merrin's clothing, on her upper chest.  "Come to think, if you want to avoid all possibility of damaging your clothing, do you possibly want to remove that clothing, or at least the upper portion of it, before we test the interaction of your still-attached hair with other ontologically-primitive energies besides Positive?"

"I already tested your clothing; it doesn't dispel my magical hand on contact."  A brief light pressure, through Merrin's clothing, on her upper chest.  "Come to think, if you want to avoid all possibility of damaging your clothing, do you possibly want to remove that clothing, or at least the upper portion of it, before we test the interaction of your still-attached hair with other ontologically-simple energies besides Positive?"