In the DH Core Rulebook it stipulates that while engaged in melee, any movement that is not the Disengage Action gives all of your melee opponents a free attack.

This “House Rule” is to clarify that this “movement” that prompts a free attack while in melee does not have to be in meters but can be any number of actions such as:

• Picking something up at your feet
• Using a control panel
• Opening a door

Picking Up Something at Your Feet
The most likely item is a weapon. A character picking up something at their feet is a Half Action. If that character is in engaged in melee, this non-Disengage action will give all current melee opponents a Free Attack.