From their FAQ section :
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Q: Will the actors touch us, or can we touch the actors?
A: YES, the actors will come into contact with you, but you CANNOT touch the actors or props.
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You can't touch them, but imagine someone getting krunk up on meth and bath salts, going in there and starting to pull their own teeth for no reason and mutilating themselves (for real) while ranting and raving, just taking your clothes off, shitting everywhere, throwing it at everything.... those actors would never recover.