I couldn't find references about the action type(s) of the following acts (standard, move, full-round, etc.) nor if they provoke attacks of opportunity.
- Retrieving an item attached to the character's equipment (such as a pan hanging from a hook on the backpack).
- Retrieving an item in the main sack of the backpack.
Is this one of the case-by-case things left to the GM's discretion?
How would you model them in their commonest case?