The document discusses reasons why a person may not feel anything during a contact session with a Spooky2 device. It lists seven factors that determine whether a frequency can be felt: 1) frequencies over 10kHz cannot be felt, 2) a minimum amplitude of 14V is needed, 3) the CS port reduces tingling, 4) reducing amplitude for frequencies under 10kHz decreases sensitivity, 5) individual sensitivity varies, 6) hydration affects current flow, and 7) the Spooky Central contact mode uses ultra-short high voltage pulses that cannot be felt. The document provides guidance on understanding why a user may not sense contact frequencies during a session.