E5B Hit the nail on the head. The long days really grow on you. As he said, your last event will often end at 1700, but you won't be secured until 2000! What will be the cause for the delay? The student company staff, the real company staff, the staff platoon commanders, who knows, but the "wait for word" is a long time TBS tradition that you too will experience.
Also, the staff will nit-pick you to death. If you are in the field with unpolished boots on day 4 of a FEX, you will get your ass chewed. If you are a billet holder, and one of your Marines doesn't have his boots polished on day 4 of a FEX, you will get your ass chewed. If you are a billet holder on a FEX, you spend all night preparing your order, you kick ass establishing a platoon defense, and then it is revealed that one of your Marines didn't drink water this morning, even when they told you they did, you will still get your ass chewed. That's what makes TBS the big suck.