How would I tie her up? I think she should be on her back, in bed, with wrists tied to the bedposts. Initially, her ankles would be tied to the bedposts too, but eventually her ankles will be set free (for reasons I won't go into). She should be comfortable, and the wrist-ties secure, but not so tight as to cut off circulation to the hands.
Of course, if she confides that she has been naughty, that she has been thinking naughty thoughts about men, or that she likes the idea of punishing a man's junk, then we shall have to move her outdoors, where she will be tied to a stake. She can stand there at attention, with her wrists tied behind the post, and feel what its like to have no way to shield her front with her hands. She knows her breasts protrude as if in offering, and that wearing a skirt leaves her very accessible below the waist. And of course, she wonders what comes next.
I'd deactivate it too. Or better yet, let her watch the laser cut the table, but just as the beam is about to reach her, pre-program the laser's computerized control to drastically reduce power to the beam so that it is now harmless. When the light touches her then, all she feels is a pleasant warmth, pleasant especially if the room's temperature has up to now been slightly on the chilly side. The beam then causes no injury. Basically it feels about as warm as the breath of a man, or stepping from indoors out into sunlight on a spring day.
That's the way I'd do it. Unless of course the computer goes on the fritz, bluescreens or something.