Uses of Constitution in interactions

In interactions, a party member's Constitution score is usually checked to determine whether they succeed at withstanding physically taxing or painful ordeals.

Quest dialogs
In quest related dialogs the player's Constitution score may unlock the following options:

[To Do: This table is incomplete. Options: ]
 * 1) Add the missing items manually.
 * 2) Ensure that the individual quest pages have this information, and turn this table into a SMW query that automatically gathers the information from them.

Other dialogs
In dialogs, not related to certain quests, the player's Constitution score may as well unlock additional conversation options:

Scripted interactions
Scripted interactions may also check the Constitution score. Some situations allow to choose which party member will perform the action, sometimes a certain member or the player will be checked.