When is it acceptable to quit a post according to General Order 5?

General Order 5 states that a sentry is only allowed to quit their post when properly relieved. This means that a member must stay at their assigned post and carry out their duties until another qualified individual is there to take over. This order is crucial for maintaining security and ensuring that there is always someone watching over the designated area. The requirement of being "properly relieved" ensures a continuous state of vigilance and accountability, which is vital in military and security operations.

The other options suggest circumstances that would not meet the disciplined standards required by military protocol. Quitting a post whenever it feels appropriate or at the end of a shift disregards the necessity of ensuring proper handover and could lead to security breaches. Similarly, quitting only after hard tasks might lead to confusion regarding responsibilities and accountability, undermining the serious nature of the post. Therefore, understanding the strict guideline outlined in General Order 5 is essential for all personnel in similar roles.